Document Details Gilt-brass demonstration timepiece with constant force coup perdu escapement, Duval dated "AN 6"(=1797/8):
Number of documents found: 1
- Title: Gilt-brass demonstration timepiece with constant force coup perdu escapement, Duval dated "AN 6"(=1797/8)
SubTitle: Time Museum Inventory No. 373, 6.3cm enamel dial with center seconds, engine turned bezel, 24 cm high, - Author: Duval
- Publisher:
Keywords: highgrade specific temp-compensation escapement
Other Keywords: coup perdu constant force
Notes: Movement with massive spring barel, coup perdu constant force escapement mounted on top plate, the large balance wheel pendent from a wire suspension, running in two sets of rollaer bearings. Two balance springs in opposition to each other, gridiron temperature compensation, beating seconds, releasing alternate seconds, , plain guilt case
Edition: Lot 14 -- Copyright: 1999
Kind: Auction Catalog
Type: Shelf clock
Geographic area: France
Topic: NA/Other
Organization: NA/other
Pages: 092-93
Entered By: FMM
BHM No: 9465
Parent Document ID: 537 - Parent Document Title: Masterpieces from the Time Museum, Dec. 2, 1999 New York - Publisher:
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