In 1962, on the Observatoire chronométrique et astronomique de Neuchâtel, caliber L360 turned in astonishing numbers even by at the moment’s requirements. The typical day by day deviation in fee, measured over a 45-day interval, at 5 completely different temperatures and in numerous positions, was 0.019 seconds per day. It was regulated, for the observatory, by Frank Vaucher – the regleurs who hand-tuned watches for the trials had been a few of the most extremely revered technicians in watchmaking. A motion might need been able to conserving time to chronometer requirements, however for it to have a shot on the brass ring in Neuchâtel, Geneva, Besançon, or one of many different European observatories, it needed to be tweaked to inside an inch of its life and there have been treasured few with the abilities and endurance to do the tweaking. Vaucher was certainly one of them.