江詩丹頓，精細、罕有及優美，18K金腕錶，配計時功能及雙色銀錶盤，型號4072，附證書

With Vacheron Constantin certificate of authenticity dated 30 June 2010 and stating that the present watch, a reference 4072, was manufactured in 1949. Furthermore delivered with a black travelling pouch.

Reference 4072, one of Vacheron Constantin's most popular chronograph models, was in production from 1938 until the early 1970s. It existed with oval-shaped chronograph buttons or with the better known rectangular version, the bezel was either bevelled or flat.

For other Vacheron Constantin chronograph models from the 1940s, designed to measure short periods of time, such as pulsations, or for events captured by tachymeter and telemeter scales, see Secrets of Vacheron Constantin by Franco Cologni, p. 238.