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horological instruments

'Abd al-A'imma Gilt-Brass Astrolabe

1715-1716

This gilt-brass astrolabe, preserved in the Caird Collection at the National Maritime Museum under ID AST0545, was created by the prolific maker 'Abd al-A'imma. It bears a construction date inscription 'fi sanat 1128' (AH 1128 / approximately 1715–1716 AD) located above the central hole. Cast in one piece with the m…

horological instruments

'Sunquest' Mean-Time Sundial

2001

This 'Sunquest' mean-time sundial, or heliochronometer, was produced in 2001 by Tony Moss of Lindisfarne Sundials in Bedlington, Northumberland. The object was designed by R. L. Schmoyer, based on original pattern designs dating to 1959. Constructed of metal, the instrument functions by tracking solar movement to in…

clocks

"Balloon" Shelf Clock, Simon Willard, 1780–90

1780–90

"Balloon" Shelf Clock made by Simon Willard (1753–1848), dated 1780–90, from American. The museum records its materials as: Mahogany, pine; brass, iron, steel, lead, synthetic cord (modern). Recorded dimensions: 29 3/4 × 12 3/4 × 4 1/2 in. (75.6 × 32.4 × 11.4 cm).

clocks

"DS" - Vienna Table Clock

1632

This beautifully crafted Viennese table clock presents itself in a case reduced to the bare essentials in terms of decoration. The only visible ornamentation are the winged cherub heads placed in the spandrels of the display-side dial. The square movement bears the inscription "Wyen" underneath the balance, and is…

clocks

« La clémence de Napoléon envers Madame de Hatzfeld ». Importante pendule mystérieuse en bronze finement ciselé

Vers 1830

« La clémence de Napoléon envers Madame de Hatzfeld ». Importante pendule mystérieuse en bronze finement ciselé, patiné et doré à l'or mat et à l'or bruni ; le mouvement dissimulé, est inscrit dans un trumeau de forme borne orné d’un tain au mercure d’où émergent les aiguilles et les heures en chiffres romains. La…

pocket watches

(157) EARLY GOLD PATEK LÉPINE WITH QUARTER REPEATER

Case back engraved with a central coat of arms featuring a crescent moon and star surmounted by a crown with foliage, a fluted Breguet-style center section, and a Soviet silver hallmark (14K). Movement: Quarter-repeater striking on bells; silver-plated and engine-turned (guilloché) movement plate; duplex escapement…

clocks

100 Objects Mirrors of Silent Time clock

1983; 1985

The '100 Objects Mirrors of Silent Time' clock is an electric timekeeping device designed by Daniel Weil and produced by Parenthesis Ltd. The clock consists of electrical and circuit components housed within a transparent PVC bag, which is intended to be suspended from a metal wall bracket. The internal circuit boar…

pocket watches

12ct yellow gold half-hunter pocket watch, 1914

London Import Marks dated 1914

This 12ct yellow gold half-hunter pocket watch is a refined timepiece dating to 1914, as indicated by its London import marks. The case is smooth-finished yellow gold with a diameter of approximately 30mm. It features a distinctive half-hunter cover, which includes a pink guilloche enamel chapter ring adorned with b…

horological instruments

13th Century Gilt Copper Astrolabe

13th century

This 13th-century astrolabe is a small instrument measuring 98 mm in diameter, constructed from gilt copper. It is unsigned and features a rete adorned with 23 star indicators formed by silver studs. The instrument includes a mater housing three latitude plates, two of which are calibrated for latitudes covering 41…

pocket watches

14K Gold American Watch Co. Waltham, Chronograph Repeater - 1895

1895

Produced circa 1895 in the United States by the American Waltham Watch Co., this hunter pocket watch features a solid 14-karat yellow gold case. The case measures 53.5 mm in diameter, weighs 129.8 grams, and is hallmarked. It is inscribed with the Latin phrase "fortis et fidelis". The timepiece is equipped with bot…

movements parts

14k Gold Double Albert Watch Chain (1916)

1916

This entry describes an antique 14k gold double Albert pocket watch chain dating to 1916 according to the auction catalog. The gold chain features curb-style links arranged with a T-bar and ring assembly. The auctioneer notes a maker's mark of JC& H, a gross weight of 44.9 grams, and a measurement of 10 1/2 inches f…

pocket watches

14K Gold Edwardian Elgin Ladies Pocket Watch - 1904

1904

This round 14k gold ladies' pocket watch, manufactured in 1904 by the Elgin Watch Company, weighs 33 grams and measures 33 mm across with a 28 mm glass face. The case features engine-turned covers, an engraved monogram reading "EBC," and an interior inscription stating "Blanche from Mother, Jan. 9 1904." The watch o…

pocket watches

14k Gold Hamilton Grade 935 Hunter Pocket Watch

Measuring 55mm in diameter and 17mm in thickness, the watch has a gross weight of 131g. The piece features a highly decorative fancy dial, which is noted for its pristine condition without hairlines, and displays Roman numerals arranged in circular surrounds with intricate gold-toned foliate accents.The watch is a p…

pocket watches

14k Gold Pendant Watch, Enamel Putti & Diamonds, Switzerland - 1870

1870

This pocket watch is recorded without a named maker, made in Switzerland, dated 1870-1880. The listing places it in the period Late 19th Century. The record describes a case of 14k gold, yellow gold, enamel, measuring Height: 50.8 mm (2 in); Width: 31.75 mm (1.25 in), weighing 29.43 g. Further details recorded: se…

pocket watches

14K Gold Victorian Open Face Pocket Watch

Victorian

This open-face men's pocket watch is cased in 14k gold and attributed to the Victorian period by the auctioneer. The dial displays blue enamel Arabic numerals along with openwork pierced hands. According to the auction description, the watch measures approximately 1.75 inches in diameter, has a gross weight of 49 dw…

pocket watches

14k yellow gold American Waltham hand engraved pocket watch with white dial - 1900

1900

This hunting case pocket watch was manufactured in 1900 by the American Waltham Watch Co. in the United States. The timepiece features a round 14-karat yellow gold case measuring 33 mm in width and height, with a stated dimension of 10.5 mm. Both the front and back covers of the case are adorned with hand engravings…

movements parts

14K Yellow Gold Curb Link Double Albert Watch Chain

Circa 1900

According to Renaissance Antiques, this curb link double Albert watch chain is constructed of solid 14K yellow gold and dates to circa 1900. Measuring 22 1/2 inches in length, the chain features two primary curb link segments designed to drape across a vest. It is fitted with an S-curved central T-bar intended to an…

pocket watches

14k Yellow Gold Illinois Hand Engraved Pocket Watch with White Dial - 1900

1900

This American pocket watch by the Illinois Watch Company dates to 1900 and features a round 14k yellow gold case. Measuring 38 mm in diameter, the exterior is decorated with intricate hand engraving on the case back in an Art Deco style. The total assembly, comprising the case, crystal, and movement, weighs 72.3 gra…

pocket watches

14K Yellow Gold Vogt Pocket Watch - early 20th Century

This Swiss early 20th-century hunting-case pocket watch measures 51 mm in diameter and weighs 48.3 pennyweight. Crafted for export to Germany, it features an engine-turned 14-karat yellow gold case numbered 114679 with a white metal interior dust cover, marked with a Swiss Bureau de Contrôle assay certification and…

horological instruments

14th Century Engraved Brass Astrolabe

1300-1400

This object is a portable astronomical instrument, specifically an astrolabe, attributed to France and dated between 1300 and 1400. Constructed from cast sheet brass with additional cast elements, the instrument is decorated with engravings. The front face features a pierced plate inscribed with the names of 37 star…

horological instruments

14th-Century English Brass Quadrant

14th century

This 14th-century brass quadrant, held by the British Museum, is an unsigned example of a 'quadrans vetus'. Measuring 160 mm in radius, the instrument features intricate astronomical markings, including lines for unequal hours and a shadow square on its front face. A notable design element is the sliding scale along…

horological instruments

16th-Century German Gilt Copper Astrolabe

16th century

This 16th-century German astrolabe is a gilt copper astronomical instrument measuring 88 mm in diameter. It is unsigned and preserved at the Istituto e Museo di Storia della Scienza in Florence, Italy. The device features a central mater with three plates, calibrated for different latitudes including 36, 40, 42, 45,…

pocket watches

18 Carat Ladies Enamelled Watch with 9 Carat Pinned Bow - Circa 1890

1890

This Victorian ladies' fob watch features an 18-carat gold outer case decorated with enamel and fitted with an internal metal dust cover. The watch is attached to a 9-carat gold bow and pin dating from 1912. The overall case dimensions measure 70 mm in height, 35 mm in width, and 10 mm in depth, with the case bearin…

pocket watches

18-carat gold demi-hunter pocket watch with 15-jewel Swiss movement

This pocket watch features an 18-carat gold demi-hunter case housing a keyless, stem-wound and set 15-jewel Swiss movement. The machine-engraved case features chapters around the front opening and encloses a metal dome. The enamel dial includes blue hands and a subsidiary seconds dial. The dial is marked "West End…

pocket watches

1892 Elgin Gold Plated Case Hunter Pocket Watch

1892

This antique pocket watch attributed to the Elgin National Watch Company features a gold-plated hunter case with a hinged front cover and reeded coin edge. The white porcelain dial displays black Roman numeral hour markers, an outer track, and a subsidiary seconds subdial at the 6 o'clock position. The dial bears th…

pocket watches

18ct Gold Enamel “Special” Diamond Grade Pocket Watch Waltham - 1898

1898

An 18-carat gold hunter pocket watch by the American Waltham Watch Co., dating from 1898. Measuring 30 mm in diameter and 15 mm in depth, the round case features a red enamel cover, outer repoussé classical decoration, and scrolling borders set with cut diamonds. The inner case contains a painted enamel scene depict…

pocket watches

18CT Gold Independent Second Pocket Watch - 1884

1884

This full hunter pocket watch, produced by W. Ehrhardt in 1884, features an 18ct yellow gold round case measuring 50 mm in diameter. The case bears English hallmarks and displays engine-turned front and back covers, with a vacant cartouche on the front and a plain inner cover. The white enamel dial is set with Roman…

pocket watches

18ct Gold Open Faced Pocket Watch with Floral Dial

19th century

This open-faced pocket watch is stated by the source to be cased in 18ct gold and dated to the 19th century. The watch features a gold-tone dial decorated with a central engraved floral bouquet, surrounded by Roman numeral hour markers and an outer dotted border track. The case band and bezel display engraved foliat…

pocket watches

18ct Gold Pair-cased With Tri-coloured Face Chester - 1822

1822

This English pair-cased pocket watch chronometer, dating to 1822 from Chester, is housed in a round 18-karat gold case crafted by Thomas Helsby of Liverpool. Weighing 159 grams, the case features engine-turned sides on the reverse and incorporates a side black lever on the main case, which is accessible once the out…

pocket watches

18ct Ruby and Diamond Pocket Watch with Jewels - 1970

1970

This retro-style European pocket watch, dating to circa 1970, is constructed from 18k gold and white gold with a decorative silver mounting and bezels. The exterior features a hinged protective shell adorned with blue enamel and multicolored floral motifs surrounded by gold-plated leaves. It is set with six rubies o…

pocket watches

18ct Yellow Gold and Enamel Open Face Pocket Watch

1840's

This 18ct yellow gold open face pocket watch dates to the 1840s and is attributed to Swiss manufacture. The piece features an intricate enamel finish, with a central scene on the case back depicting a boat on the river Bosphorus at sunset, surrounded by floral and enamel detailing that extends to the bow and the cir…

pocket watches

18ct yellow gold Patek Philippe open face chronograph pocketwatch

1924

This Patek Philippe open face chronograph pocketwatch is dated to 1924 and is constructed from 18ct yellow gold. The watch measures 50mm in diameter. It features a white enamel dial with black printed Breguet numerals, an outer minute track, and blue steel moon hands. The dial configuration includes a running second…

pocket watches

18K French Pocket Watch with Bowl of Hygieia - 1915

1915

This French 18-karat bicolor gold pendant pocket watch dates to approximately 1915. The watch is suspended from a graduated banner that attaches to a 1 9/16-inch brooch. The banner is ornamented with a central Bowl of Hygieia flanked by two rose-cut diamonds. The watch cover is hand-engraved with a motif depicting a…

pocket watches

18k gold keyless wind dual-sided quarter repeating full hunter pocket watch, c. 1890

Circa 1890

This 18k gold, keyless-wind, dual-sided, full hunter pocket watch dates to approximately 1890. The timepiece is complex, featuring a nickel 3/4 plate Swiss lever movement with a bi-metallic balance wheel equipped with compensation screws and a blued steel Breguet overcoil balance spring. The watch is distinguished b…

pocket watches

18K Gold Moon-Phase Calendar Pocket Watch

c. 1890

This antique pocket watch is reported by the dealer as Swiss-made, dating to circa 1890, and cased in 18K pink gold measuring 50 mm wide by 17 mm deep. The white enamel dial features black Roman hour numerals, an outer minute track with five-minute markers, and pierced gilt filigree hands. A central horizontal apert…

pocket watches

18k gold open-face pocket watch with 14k gold chain, H. Adama, Leeuwarden, late 19th century

Late 19th Century

This open-face pocket watch, dating to the late 19th century, features an 18K yellow gold case and crown, measuring approximately 50 mm in diameter. The gold-colored dial is adorned with an engraved floral motif, Roman numeral hour markers, and blued steel hands, with a dedicated subsidiary seconds dial located at t…

pocket watches

18k gold pendant watch with emerald and diamond star motif on gold bow brooch

This antique lady's pendant watch is cased in 18k yellow gold and is presented suspended from an unassociated 18k yellow gold bow-form brooch featuring a stem and safety clasp. The watch case, measuring approximately 25mm in diameter, features an ornate exterior cover decorated with a prominent star motif formed by…

pocket watches

18k Gold Savonnette Pocket Watch Gifted to General de Gaulle

circa late 19th century

This 18k gold savonnette pocket watch is identified by the auction description as a piece of Swiss manufacture dating from the late 19th century. The watch features a round, hinged case with exterior covers decorated with engraved, stylized foliage motifs. The case back is centered by an inscription reading "Muhamma…

pocket watches

18k yellow gold chronometer pocket watch by Pérette

This 18k yellow gold (750/1000) chronometer pocket watch features a round case measuring 50 mm in diameter. It is equipped with a white enamel dial, which displays Roman numerals for the hours and baton indices for both minutes and seconds, complemented by a small seconds sub-dial located at the 6 o'clock position.…

pocket watches

18k yellow gold key-wind cylinder pocket watch

This petite antique pocket watch is crafted from 18K yellow gold (750/1000) and features a classic round case with a diameter of 33 mm. The white enamel dial is adorned with Roman numerals for the hour markers and a railway-track minute scale, complemented by delicate pear- and leaf-shaped hands. The case back is de…

pocket watches

18K Yellow Gold Pocket Watch

Circa 1920

This open-face pocket watch features an 18K yellow gold case measuring approximately 43 mm across, with a total gross weight recorded at approximately 32.80 dwt. The source reports a manual-wind movement and dates the watch to circa 1920. According to catalog description stamps, the inner case is inscribed '13455 Va…

pocket watches

18k yellow gold pocket watch by M.J. Tobias, retailed by Benedict & Scudder, c. 1836

c. 1836

This antique pocket watch is a collaborative work between the Liverpool-based watchmaker M.J. Tobias and the New York retailer Benedict & Scudder. Constructed during a period when imported watch movements were often married to domestically produced cases to reduce taxes, the 18k yellow gold case features handsomely…

pocket watches

18K yellow gold pocket watch with niello floral back and cylinder escapement

This 18K yellow gold pocket watch features a round case with a diameter of 35 mm and a gross weight of 26.12 grams. The watch is distinguished by its white enamel dial, which is marked with Roman numerals for the hours and a combination of dot and baton indices for the minutes, complemented by decorative hands. The…

pocket watches

18kt Rose Zenith Pocket Watch Thomas Engel with Box & Papers - 1984

1984

This 1984 open-face pocket watch by Zenith, designated Thomas Engel, features an 18kt rose gold case measuring 50.6 mm in diameter and 14.1 mm in thickness, with a guilloche case back. The complete watch weighs 130.5 grams and forms part of a limited edition numbered 9. The timepiece is fitted with a Breguet-style…

pocket watches

18Kt Yellow Gold Wind Lever Pocket Watch with a Crown Motif - 18th Century

This pocket watch features an 18kt yellow gold case with a matt finish and a diameter of 50 mm. The front cover is decorated with a crown motif set with seven diamonds and five rubies. The inner cuvette bears inscriptions of two awards dated 1895 and 1896, and the case is stamped with Swiss hallmarks. The white ena…

clocks

18th Century Bracket Clock by William Creak

18th century

This 18th-century bracket clock features an 18th-century movement by William Creak of London, housed within a case of later date. The timepiece stands 62cm high, surmounted by a brass carrying handle over a bell-top design adorned with four acorn finials. The mahogany-finished case includes inset sound frets, glazed…

clocks

18th Century Lantern Clock, Niel à Alacambe

18th century

This listing presents an 18th-century lantern clock signed on the brass dial by 'Niel à Alacambe'. The circular dial measures 19 cm in diameter and is engraved with Roman numeral hour markers interspersed with radiating starburst dividers. A central numbered alarm disc and a single decorative pierced hand are fitted…

pocket watches

18th-century 20k gold and enamel pocket watch

18th Century

This antique pocket watch is described by the auction house as an 18th-century piece crafted in 20-karat yellow gold with enamel accents. The case measures 45 mm in diameter, and the watch has a reported total gross weight of approximately 66.97 grams. It is signed FG, stamped 20K, and powered by a key-wound movemen…