1968 Omega Speedmaster Professional 145.012 Cal. 321 (Pre-Moon)

This 1968 Omega Speedmaster Professional Ref. 145.012 features the revered Calibre 321 and comes from a collector in very good overall condition. The watch has been fully serviced and retains its original Omega bracelet, though it is currently fitted with a black aftermarket leather strap secured by a stainless steel buckle.

The matte black dial displays luminous painted baton hour markers, outer minute and seconds divisions and outermost 1/5-second markings. The sub-dials include running seconds at 9 o’clock, a 30-minute counter at 3 o’clock and a 12-hour register at 6 o’clock. Luminous baton hands and an arrowhead chronograph seconds hand complete the period-correct layout. The 42 mm case provides the iconic Speedmaster presence associated with this reference.

Interesting Fact: The 145.012 was the final Speedmaster reference to use the Calibre 321, making it a favourite among collectors who appreciate the movement’s design and historical significance.

Collection: Speedmaster Professional

Style: Men’s

Case Diameter: 42 mm

Reference: 145.012

Clasp: Stainless steel buckle (currently fitted)

Strap: Black aftermarket leather strap; original Omega bracelet included

Movement: Calibre 321 manual wind chronograph

Water Resistance: N/A

Features: Pre-Moon model, Luminous baton indexes, Arrowhead chronograph

seconds, Three-register chronograph, Fully serviced