- Museum number
GILT-BRASS CASED VERGE CLOCK-WATCH WITH HALF-HOUR STRIKING AND ALARM [DIAL NOT ORIGINAL].
Gilt-brass case with integral back and hinged lid. The band with an upper and lower moulding enclosing a pierced colonnade. The central area of the back is pierced and engraved with a design of foliage and strapwork. Gilt-brass pendant with loose ring. Gilt-brass finial. The hinged glazed bezel is not original.
Gilt-brass dial plate with two lugs and a latch for attaching the movement. Two hinge elements at XII. The original dial has been replaced by a silver champlevé chapter ring with Roman hours I-XII and lozenge half-hour marks surrounding a quarters-circle, and a central silver alarm setting disc. The original dial had a hole at IX for strike release. Blued-steel hand not original.
Circular gilt-brass plates with five baluster pillars riveted to the rear plate in the German tradition. Screwed-on potence and screwed-on counter-potence. Separate screwed-on bridges on the front-plate for the recessed train wheels.
MAINSPRING & SET-UP:
The plain brass barrel with snap-in cap and riveted steel hook is a replacement. The barrel arbor might be the original but it has been modified. Ratchet and click set-up mounted on the back plate; brass ratchet wheel and elaborately pierced and engraved gilt-brass click.
FUSEE & STOP-WORK:
Gilt-brass fusee with a steel ratchet wheel mounted on the base, and of smaller diameter than the fusee, possibly a replacement. The chain not original, being slightly too small for the fusee groove. Standard
stop-work with an elaborately turned and shaped gilt-brass block.
Four wheel train of gilt-brass wheels each with four crossings. The recessed second wheel and third pinion run in a separate bridge screwed to the front-plate.
ESCAPEMENT & BALANCE:
Verge escapement, the crown wheel runs between a screwed-on potence and a screwed-on counter-potence. The verge, brass 3-arm balance, spiral steel balance-spring, slide regulator and balance-spring stud are all part of a later modification. The original screwed-on balance cock has been raised by the addition of a brass plate on the underside of the cock foot.
Simple motion work consisting of a brass pinion of report mounted on the great wheel which drives a brass dial wheel which carries the hand.
Powered by a gilt-brass fixed barrel with engraved decoration on the visible side. Five wheel train of solid gilt-brass wheels the last being a roller pinion. Steel count-wheel for hours and half-hours. Nag's head release operated by a 24-point star wheel mounted on the dial wheel. The release lever with an elaborately pierced and engraved gilt-brass screen. There is no over-lift arm on the release assembly, the over-lift is done by the pin in the hammer arm acting on a tail on the rear of the nag's head.
Powered by a fixed barrel. Three wheel train, the recessed second wheel and contrate pinion pivoting in a separate bridge screwed to the front-plate. The great and second wheels of gilt-brass, the contrate made from steel. All the wheels are solid. Verge escapement, the steel crown wheel runs in a composite clip, gilded and engraved on the visible side. The verge and semi-circular hammer are now missing. They pivoted between the front-plate and a separate screwed on bridge on the back-plate. Originally with slide locking but now with all the components missing and the end of the locking lever modified with a pin which intercepts the crown wheel. Alarm released by a cam mounted on the dial wheel.
Great wheel:54 teeth [probably not original]
Second wheel:45 teeth; pinion:6 [replacement pinion]
Third wheel:40 teeth; pinion:5 [replacement pinion]
Contrate wheel:35 teeth; pinion:5 [replacement pinion]
Crown wheel:15 teeth; pinion:6 [replacement pinion]
Beats per hour: not relevant.
Second wheel:45 pinion:6 [replacement pinion]: Pinion 4 (to drive count-wheel)
6 pins to lift hammer.
Third wheel:40 teeth; pinion:5 Count-wheel:60 teeth Fourth wheel:32 teeth; pinion:5
Fifth wheel:6 [replacement]
Great wheel:24 teeth
Second wheel:24 teeth; pinion:6
Contrate Wheel:18 teeth; pinion:6
Crown wheel:11 teeth; pinion:6 [replacement]
Pinion of report:24
POR rotates once in 6 hours.
Turns on fusee:4.5
Duration = 27 hours approx.
- Production date
Diameter: 63.50 millimetres (case)
Thickness: 37.20 millimetres
- Curator's comments
- For other examples of the work of this maker see:
1. Sarasin Collection Sale, lot 8.
2. Sternberg Collection Sale, lot 87.
3. Liverpool City Museum Collection.
4. Fraenkel Collection no.2.
5. See also Abeler for other info.
- Not on display
- Acquisition date
- Britain, Europe and Prehistory
- Registration number