According to the Archives of Montres Omega, the present watch was sold on 18 March 1950.
The present watch is an interesting model, featuring both sweep centre and subsidiary seconds. Of comparable design as the famous "Synchrobeat" (the stainless steel prototype is described and illustrated in Omega - A Journey Through Time by Marco Richon, p. 193, pl. 85), it possibly served as a model for this unusual wristwatch.
This watch furthermore stands out by its large size, the attractive two-tone silvered dial, perfectly synchronized centre and constant seconds and very good overall condition.