Ref. 3646 Type C

Inventory Number: WWP1906006

Military Diver's Wristwatch. Produced in the 1940s, 47mm, stainless steel case, with Rolex Cal.618 manual-winding movement. 

Reference 3646 was made by Rolex for Panerai in production from 1938 until the 1950s, supplied to the Italian Royal Navy and German Navy, and produced in several versions classified Type A to Type G, only 211 pieces are known for now. According to its case number, this is a Type C version. 

Functions: hours and minutes.