Chronograph 2512

Oversized 46 mm pilot’s split-seconds chronographSplit-seconds chronographA chronograph with two superimposed timing hands. One can be stopped to read an intermediate time while the other continues; releasing the stopped hand makes it catch up and run together with the other again. This allows comparison of events that start together. of the early 1950s with stepped bezelBezelThe frame surrounding the crystal at the front of a watch., luminous Arabic numerals and a large tachymeterTachymeterA chronograph scale that converts the time taken to travel a known distance into average speed. The distance and scale units must correspond.. The yellow-gold black-dial example bought by the Patek Philippe Museum at Christie’s in 2000 inspired the ref. 5070.