This vintage Omega Constellation Chronometer, produced in 1973 for the Japanese market, carries reference ST 168.0056. It features a steel case with its original polish fully intact. The light gray dial has a vertical brushed finish and remains in perfect condition. The caseback also retains its original polish, though it shows light scratches.



Inside is the caliber 1011 automatic movement, serviced in November 2025 and currently running great, even within chronometer-certified standards. The case, dial, crystal, hands, and crown are all in excellent shape.



We’ve paired the watch with an unpadded black calf leather strap featuring a crocodile grain. While it could make as a near-mint condition dress watch, the steel case also makes it suitable for daily wear. Overall condition is excellent.





Year of production: 1973

Serial number: 37.682.358

Model number: ST 168.0056



Case dimensions.

- Width excluding crown: 35mm

- Width including crown: 37mm

- Lug to lug: 40,5mm

- Thickness: 9,7mm

Lugs width: 19mm

Strap: A black non-padded calf leather strap with crocodile grain. (Fits a 12 to 20cm wrist)



Total head-only weight: 40,0g



Country of origin: Switzerland

Movement: Cal. 1011 Automatic

Service information: Movement serviced in November 2025. Runs and functions great. (~-2s/d, ~259amp, ~0.1ms b/e)



Internal code: BTW 1142