Its About Time has dated this piece to the 1960s.
The original, manually wound calibre 860 movement, which is the two subdial version of the 861, runs smoothly and keeps accurate time, with the chronograph functions resetting sharply, and can be both started and stopped by the upper pusher and reset via the lower pusher. It is currently receiving a full service and a clean and polish of the case, the pictures shown are pre-restoration, more pictures to follow! The case measures 40mm in length from the lugs, 35mm in diameter not including the crown or pushers (38mm including), 19mm between the lugs, and 12mm in depth.
Its About Time has dated this piece to the 1960s.
Antique clock and watch shop specialist (featured on salvage hunters the restorers) with select fine furniture.
You can view the stock and full dealer information on the Its About Time Profile Page