Omega Vintage Speedmaster Professional 145.012 42mm (1968)

The Omega Speedmaster 145.012 is a classic “pre-Moon” chronograph revered among collectors as the last of the Speedmasters fitted with the legendary Calibre 321 movement. Produced around 1967-1968, it features the iconic 42mm stainless steel case with twisted (“lyre”) lugs, the asymmetrical crown-guard style case, and a matte black dial with stepped edges—design elements that give the watch its rugged yet elegant character. The black aluminium tachymeter bezel, often with the coveted “Dot Over 90” (DON) marking, complements the black dial, while aged tritium lume across the hands and hour markers adds vintage warmth and patina. Powered by the hand-wound Calibre 321, this Speedmaster embodies heritage, precision, and the design DNA that would later go to the Moon.

Specifications

• Range: Speedmaster Professional (Pre-Moon)
• Model: 145.012
• Year: circa 1967-1968
• Dial: Matte black with stepped profile; tritium hour markers and hands with even patina
• Crystal: Hesalite (acrylic) crystal
• Bezel: Black aluminium tachymeter bezel
• Case Size: 42 mm
• Case Material: Stainless steel
• Bracelet: Stainless steel
• Clasp: Steel deployant or fold clasp depending on strap/bracelet
• Movement: Calibre 321, manual‐wound, chronograph (30-min & 12-hour subdials)
• Water Resistance: Vintage – only splash resistant. Do not submerge