- Museum number
CHROME-PLATED CASED PIN-PALLET LEVER WATCH.
Ingersoll chronostop pocket watch.
Movement with steel plates and pin-pallet lever escapement; keyless winding and hand-setting.
White dial with Arabic numerals 1-12 and 0-60; minute circle with 300 divisions.
Black painted hour and minute hands; blued steel centre-seconds hand.
Chromium-plated case with glazed bezel and back; slide on side of case allows watch to be used as stop-watch providing stop and start functions; depressing the winding button provides zeroing for the centre seconds hand.
- Production date
Diameter: 51 millimetres (case)
Diameter: 41.10 millimetres (dial)
Thickness: 20.30 millimetres
- Curator's comments
This watch is a prototype of an Ingersoll cronostop with seconds-hand that can be zeroed by depressing the pendant.
With the watch is a brown label on which written in biro:
'Sample Fly Back + Stop Work c/s
Compare with 1983,1012.110
- Not on display
Latest: 2 (2017)
3 (Mar 1995) glass is loose
- Acquisition date
- Britain, Europe and Prehistory
- Registration number