This Patek Philippe Ref# 3970EP-021 is complete. It is accompanied with a certificate of origin, second case back, setting pin, hang tag and box. This example is like new, and has never been polished.
The 3970 perpetual chronograph manual wind watch, features a 36 mm case. This is a platinum example with silver dial, and platinum deployment buckle. Functions include hours, minutes, seconds, day, date, month, moon phase, leap year indicator, 24 hour indicator and chronograph.
Ref. 3970 was created following the success of the exceptional Ref. 2499. The design of the case of Ref. 3970, with its down-turned, fluted lugs, is clearly influenced by the form of the Ref. 2499. One main difference between the two models is the addition of the leap year indicator to the 3 o'clock subsidiary dial and 24-hour indicator to the 9 o'clock subsidiary dial. The Ref. 3970 is now considered a classic by collectors, following in the footsteps of its predecessors Ref. 1518, Ref. 2499. One can distinguish three series in the production of Ref. 3970. A series is defined by variations in case designs or features.