A unique Omega prototype
By: quattro : May 8th, 2026-21:47
This Omega ref. 055 ST 175.0035, a self-winding bissextile perpetual calendar with moon phases , is a prototype and unique piece , never commercialized. It was one of the personal timepieces of Anton Bally (1946-2002), former director of ETA S.A., one of ...