Hamilton 4992B 24-Hour Military Pocket Watch, c. 1941
Record status
Individual type · partial
Period
c. 1941
This Hamilton 4992B is a 16-size, 22-jewel military pocket watch dated circa 1941 by the seller and manufactured for the United States Government during World War II.
Housed in a base metal open-face Keystone case with screw-off bezels, it features a black dial marked 'G.C.T.' with an inner 24-hour track, outer minute/seconds divisions, and white spade hands with a central sweep seconds hand. The nickel three-quarter plate movement includes a hacking mechanism and micrometer regulator, reported to bear serial number 4C7938.
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
- Military 24-hour pocket watch
- Dimensions
- 51mm wide x 15mm deep
- Jewel Count
- 22 Jewels
- Place recorded
- United States
- Movement Serial
- 4C7938
- Case Serial Number
- NO. 801-42
- Maker / attribution
- Hamilton Watch Co
- Case Inscription Part Number
- PART NO AN 5740
Design
- Visible features
- • Black dial with an inner 1–24 hour Arabic numeral scale and an outer minute/second track numbered at five-minute intervals • Dial printed with 'G. C. T.' across the upper center • White spade and pointer hands with a slender white central sweep seconds hand • Open-face base metal case with reeded screw-off bezel, grooved winding crown, and shaped bow
- Dial and Display Configuration
- The watch features a black dial with an inner chapter ring scaled from 1 to 24 and an outer minute/second track numbered at five-minute intervals. The hand arrangement includes white spade and pointer hands paired with a slender central sweep seconds hand, designed so that the hour hand completes one revolution every 24 hours. Across the upper center, the dial is visibly printed 'G. C. T.' (recorded as 'GCT' in the dealer's text). The seller describes the dial material as black paint on metal and reports that it is fitted with a mineral glass crystal.
- Case Construction and Inscriptions
- The timepiece is housed in an open-face base metal case with a reeded screw-off bezel, grooved winding crown, and shaped bow. The seller attributes the case to Keystone and notes screw-off construction for both front and back bezels, measuring 51 mm wide by 15 mm deep with stem winding and setting. The rear exterior of the case is not visible in the supplied photograph. According to the seller's transcription, the case back is engraved with military markings: 'PART NO AN 5740, MFR’S PART NO 4992B, SERIAL NUMBER NO. 801-42, CONTRACT NUMBER 86366, HAMILTON WATCH CO'.
- Movement Specifications and Seller Reports
- The internal mechanism is not visible in the provided photograph, and all movement specifications are derived from the seller's listing. The movement is described as a 16-size nickel three-quarter plate mechanism fitted with a lever escapement, micrometer regulator, and a hacking feature that halts the balance during hand setting. The seller reports a 22-jewel configuration achieved by an additional wheel and jewel on the top plate. The movement is reported to be signed 'Hamilton Watch Co, USA, 4992B, 22 Jewels, US Govt, Adj Temp & 6 positions' with serial number 4C7938.
Identification
- Reference
- 4992B
- Serial number
- 4C7938
- 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: Movement and case back interior/exterior are not visible in the photograph; movement signature, serial number 4C7938, and military case back markings rely entirely on seller reports
- Research required: Date of circa 1941 is seller-estimated