细节
VACHERON CONSTANTIN. A SILVER OPENFACE CHRONOGRAPH KEYLESS LEVER POCKET WATCH
Signed Vacheron & Constantin, Geneve, Corps of Engineers, U.S.A., No. 1165, circa 1920
With frosted gilt-finished lever movement, bi-metallic compensation balance, silver cuvette, white enamel dial with luminescent Arabic numerals, subsidiary seconds, polished case engraved with "Corps of Engineers U.S.A." and numbered, case, cuvette, dial and movement signed
52mm diam.