The history of this Omega Speedmaster 125
Launched in 1973 to celebrate the 125th anniversary of the Omega brand, the Speedmaster 125 holds a unique place in the history of Swiss watchmaking. Designed as an anniversary piece, it marked a major milestone by becoming the first automatic chronograph certified as a COSC chronometer. Produced in approximately 2 000 pieces only, this Speedmaster illustrates Omega’s technical ambition in the 1970s and is now a sought-after vintage watch among collectors for its historical importance and rarity.
Case, calibre and bracelet
This Omega, reference ST 378.0801, features a 42 mm stainless steel case with a bold design characteristic of 1970s chronographs, fitted with a bezel engraved with a tachymeter scale. The black dial displays a dual-register layout, with small seconds and a day/night indicator at 9 o’clock, a date window at 3 o’clock, and luminescent indexes and hands. The watch is powered by the Omega automatic calibre 1041, a chronometer-rated version of the calibre 1040 based on the Lemania 1340, composed of 22 jewels and offering an approximate 40-hour power reserve. It’s fitted with a stainless steel bracelet with an Omega folding clasp, measuring 26 mm at the case and tapering to approximately 15.5 mm at the clasp, reminiscent of the Seamaster “Albatros” bracelet.
Why this watch
This Speedmaster 125 stands out for its unique status within the Speedmaster line. Its COSC-certified calibre 1041 makes it a technically remarkable watch, while its bold and assertive design perfectly reflects the aesthetic of the 1970s. Both an automatic chronograph and an anniversary model, it represents a key piece for vintage Omega enthusiasts and collectors seeking a watch with strong historical value.
Delivered contents and condition
This vintage watch is offered with the option of cosmetic refreshing. It’s delivered in a The Swiss Collector travel box. Our watchmakers carry out inspection, adjustments and validation according to The Swiss Collector protocol prior to sale.
Warranty and delivery
This model benefits from a 1-year The Swiss Collector warranty. Each luxury watch from The Swiss Collector is authenticated, tested and verified. Fast and secure international delivery, with the option of free in-store collection at our Swiss points of sale.
*Used condition – Visible signs of wear. Aesthetic consistent with the age and history of the piece. Polishing available on request.
