calendar watch;
lunar watch;
watch-case
- Museum number
- 1958,1201.535
- Description
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SILVER-CASED VERGE WATCH WITH CALENDAR AND TIDAL DIAL.
:
MOVEMENT
Circular gilt-brass plates with four tulip pillars. Gilt-brass barrel with tangent-screw set-up mounted on the back-plate, the silver index now replaced by a blued-steel disc. Fusee with chain and standard stop-work. Four wheel train of gilt-brass wheels, second third and contrate with three crossings. Verge escapement, the crown wheel runs between rivetted potences. The potence passes through a hole in the front-plate and has engraved decoration on the visible side. Brass 3-arm balance with spiral balance-spring. Geared regulation with a silver index disc engraved 5-30. Silver balance-bridge.
A pre-balance spring watch with later balance-bridge and regulation work, original cock removed and holes plugged.
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DIAL & HAND
Gilt-brass dial plate with a wheat-ear border to surround the dial.
Silver dial with subsidiaries and apertures. Hours and half hours in the lower dial with an aperture showing days of the week. Upper left, a subsidiary 1-31 for the date. Upper right; age and phase of the moon with a ring showing high tide at London Bridge. At the top, a sector aperture shows the month and the number of days in it.
:
CASE
Silver case with a cover for the winding hole operated by a lever in the side of the case. The movement is hinged in the case at XII, the bezel is hinged at IX. The pendant is not original.
TRAIN-COUNT.
Gt wheel 66
2nd wheel 42/6
3rd wheel 36/6
Contrate wheel 36/6
Crown wheel 17/6
Motion work.
Gt wheel arbor extended and carries wheel of 14 driving arbor with wheel of 30 with pinion of 4; this arbor carries hour hand. Pinion of 4 drives wheel of 56 carrying day-of-week disc. This wheel of 56 also has a pinion of 14 which gears with two other wheels - one of 62 whose arbor exends through dial to carry date of month hand, th other of 59 whose arbor is extended to carry moon-phase hand and disc.
- Production date
- 1675-1680
- Dimensions
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Diameter: 53.20 millimetres (case)
- $Inscriptions
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- Location
- Not on display
- Condition
- Latest: 1 (1993)
- Acquisition date
- 1958
- Department
- Britain, Europe and Prehistory
- Registration number
- 1958,1201.535
- Additional IDs
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Previous owner/ex-collection number: CAI.0535 (Ilbert Collection)
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Previous owner/ex-collection number: M38 (Ilbert Ledger)
