The ref. 2475 is the oversized chronograph of Omega's post-war catalogue. At 37mm it was substantially larger than the brand's standard chronograph offering of the period, and it remained in production across roughly fifteen years — an unusually long run that produced tachymetre, telemetre, and pulsations dial variants across the same case.
The movement is what places this reference correctly. The Cal. 320 is the two-register execution of the same Lemania-derived column-wheel architecture as the Cal. 321 — the calibre that would later power the Speedmaster to the moon. Same column wheel, same escapement, same construction standards. The 320 omits only the twelve-hour counter. For a collector, this is the least expensive route to that architecture, and it comes in a case that wears larger than most Speedmaster references of the following decade.
The steel “jumbo” case is unpolished and it measures 37mm excluding the crown and is in very good condition, with the characteristic twisted lugs and the fully signed and numbered snap-back closing tightly.
The dial has developed a warm, even patina, with some oxidations present. The applied gold indices and dauphine hands are original. Subsidiary seconds at 9, 30-minute counter at 3.
This chronograph has been serviced by our in-house watchmaker and all functions operate correctly.
New plexy glass and new leather strap.
This watch will be delivered with our six-month guarantee and our originality certificate.
Worldwide shipping is available and inquiries are welcome.
