The Mono Rattrapante was Bovet's creation and patent during the 30s, as demand for split second chronographs (Rattrapante) was high. The aim was to offer most of the functionality of the rattrapante but with a simpler, more cost effective and less problem-prone movement. The split seconds chronographs were invented for the purpose of timing intermediate events from your wristwatch, for example two athletes passing the finish line, that wouldn't be possible without having two or three chronographs at hand. With the Mono rattrapante, instead of two chronograph seconds hands (split seconds) there is only one. You push the top pusher to begin the chronograph and when you wish to time the first event, hold down the bottom pusher and the chronograph hand stops but the chronograph mechanism is still running. When you release the pusher the sweep seconds hand catches up the actual time allowing you to start all over again. Unlike the traditional rattrapante however, due to its design and the extra hairspring in the movement that is used, the possible split time is limited to 60 seconds or one full rotation of the seconds wheel.
The movement was big innovation by Bovet and many timepiece versions were made.
On offer is an early Mono Rattrapante on a non water resistant, dog leg and fixed lugs case. Case at 36mm (39mm with the crown) is excellent with only minor signs of use, no hits or corrosion at all.
Dial turning to a cream/champagne hue from age!! Beautiful original blue hands in very good condition still having their original radium.
Original crown and chronograph pushers.
Valjoux 84 was just serviced by Christian (watchguy.uk) and as you'd expect is in excellent state, ready to be enjoyed by its new owner.
A custom made, especially for this Bovet (fixed bars), suede leather strap was made by JP Menicucci.

The watch will come with a one year warranty on the date of purchase extending the already active one year given by the Watchguy.