Record Watch Co. Sector Watch 'Triangle' open-face pocket watch

Technical characteristics

Type

Open-face watch

Maker

Record Watch Co., Tramelan (Bernese Jura)

Caliber

21 ½ x 15'''

Material

Silver (0.800)

Dimensions

Height 71.5 mm (including bow), Width 59.8 mm

Case Number

1 699

Place recorded

Switzerland

Maker / attribution

Record Watch Co.

Design

Visible features

• Fan-shaped triangular white enamel dial inscribed 'TRIANGLE' in block lettering. • Curved retrograde track indicating hours 0 through 12, flanked by an outer 0–60 minute track with red five-minute markers. • Blued steel pear-form retrograde hands centered at the lower vertex. • Engraved silver bezel with trellis and foliate patterns, accompanied by a heart-shaped lower pendant bow. • Contrasting fluted gold-toned winding crown located at the upper apex.

Dial Configuration and Display

The dial is a fan-shaped triangular white enamel sector inscribed 'TRIANGLE' in block lettering across the upper center. The time display consists of an arched retrograde scale featuring radial Arabic numerals from 0 through 12, complemented by an outer 0–60 minute track marked with red five-minute graduations. Time is indicated by blued steel pear-form hands originating from the lower vertex. The auction catalog reports that the hands are original and notes the presence of dial hairlines and chipping beneath the bezel that is not visible when closed.

Case Construction and Exterior Form

The watch features an open-face, 0.800 silver case formed in a triangular sector shape. According to the auction listing, the case was produced by Holy Frères of Saint-Imier and is designated case number 1 699, with catalog dimensions of 71.5 mm in height including the bow and 59.8 mm in width. Visual observation of the front reveals an engraved silver bezel decorated with trellis and foliate patterns, along with a heart-shaped lower pendant bow at the bottom vertex and a contrasting fluted gold-toned winding crown at the upper apex. The case back is described in the auction text as being engraved with a sunburst motif featuring alternating polished and engraved sectors, though this feature is not visible in the front-facing photograph.

Reported Movement and Patent Heritage

Because the case is closed in the available view, the movement cannot be directly inspected. The catalog lists the caliber as an unnumbered 21 ½ x 15’’’ triangular-shaped movement made of rhodium-plated metal, featuring a straight-line lever escapement, going barrel, uncut bimetallic compensated balance with gold poising screws, blued steel hairspring with terminal curve, and a polished steel index-regulator. According to the catalog notes, the movement construction is based on Swiss invention patent No. 27 961, granted on April 9, 1903, to Giovanni Sgherlino of Turin for a 'Pièce d’horlogerie'. A copy of this patent was reported included with the lot. Auction condition notes describe the movement as signed, slightly oxidized, slightly scratched, and recommended for an overhaul at the buyer's expense.

Identification

Serial number

1 699

Source note

Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.