Hamilton Tank Masterpiece Wristwatch
Record status
Individual type · partial
Period
1955 to early 1960's
This Hamilton Masterpiece wristwatch is encased in 14K yellow gold and features a rectangular tank-style profile. The watch houses a manual-winding caliber 770 movement with 22 jewels, operating at a frequency of 18,000 vibrations per hour with an approximate power reserve of 45 hours.
The light gray dial is fitted with Arabic numerals at the even-numbered hours, gold baton markers, and a subsidiary seconds dial at the 6 o'clock position. The gold Dauphine-style hands complement the geometric aesthetic. The case back is engraved with "Hamilton Watch Co. – Lancaster PA – 14K gold – C98934." The watch is currently fitted with a brown lizard-patterned strap and is reported by the seller to have been recently serviced.
The model was produced in Lancaster, Pennsylvania, during the mid-twentieth century.
Evidence at a glance
- Linked sources
- 1
- Photograph views
- 1
- Catalogue references
- 0
Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.
Technical characteristics
- Type
- Tank wristwatch
- Maker
- Hamilton
- Model
- Masterpiece
- Movement
- Caliber 770
- Frequency
- 18,000 A/h
- Jewel Count
- 22
- Case Material
- 14K Yellow Gold
- Power Reserve
- 45 hours
- Serial Number
- C98934
- Place recorded
- United States
- Maker / attribution
- Hamilton
- Production Location
- Lancaster, PA
Design
- Visible features
- • Light gray dial with scattered discoloration • Gold-tone crown embossed with the Hamilton logo • Engraved inner case back details • Brown lizard-patterned leather strap
- Case and Dial Design
- The watch features a rectangular 14K yellow gold case measuring 28mm in width and 39mm in total length including the lugs. The case houses a light gray dial that incorporates a combination of Arabic numerals at the 2, 4, 8, and 10 positions, interspersed with gold baton hour markers. A dedicated subsidiary seconds dial is located at the 6 o'clock position, and the term "Masterpiece" is printed below the 12 o'clock marker. The handset consists of gold-colored Dauphine-style hour and minute hands. The winding crown located on the side of the case displays the manufacturer's logo. The back of the case is engraved with technical information including the manufacturer's name, the location of production in Lancaster, Pennsylvania, the material composition, and the serial number C98934.
- Provenance and Identification
- The object is identified as a Hamilton Masterpiece model. The watch is currently catalogued by the vendor as a vintage timepiece. The physical characteristics of the watch, including the internal case engravings, corroborate the link to the Lancaster-based production era of the Hamilton Watch Company. The item is offered without original box or paper documentation.
- Movement and Technical Specifications
- The timepiece is powered by a manual-winding movement identified as the Hamilton caliber 770. This movement features 22 jewels and runs at a balance frequency of 18,000 vibrations per hour (A/h). According to historical information provided in the source documentation, this specific caliber was manufactured at the company's facility in Lancaster, Pennsylvania, between 1955 and the early 1960s. The movement is capable of an approximate power reserve of 45 hours when fully wound. The auction description reports that the movement has been serviced, ensuring its functional status. No further documentation regarding the specific nature of the service is provided.
Identification
- Serial number
- C98934
- 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.
Research required
- Research required: Exact year of manufacture within the 1955-1960s range is not specified
- Research required: Extent of prior servicing not documented beyond seller report