Ca. Ø53mm, ca. 104g, 18K pink gold, maker's mark FF, numbered 3748/2045, both sides glazed, full plate movement, unusual verge escapement, face with signed enamel dial with central time indication, pink gold hands, minimal craquelling around the rim, back engine turned, decentralised 2nd time zone (dial with cracks), central regulation, above it the mock pendulum, in working order, extremely rare. Similar watches are known from Dubois.