Brand: Omega
Model: Seamaster
Reference: 145.006
Year: 1966
Case: Stainless steel, 38mm, 13mm
Caliber: Omega 321, manual wound
The Omega Seamaster collection dates back to 1947, offering a wide range of models over the years. In the late 1960s, Omega shifted towards a sportier design style and didn't introduce colorful dials on their cushion-type chronographs until the early 1970s. Models like the 145.029 and 145.020, which came out in the early '70s, stood out for their more relaxed and creative dial designs. To give the Seamaster a sporty "racing" flair, Omega added a bold orange chronograph seconds hand to three variations: black, silver, and reverse panda. The 18k gold version featured a black hand, while an extremely rare racing model, almost at the prototype stage, came with a white chronograph seconds hand. This variation was particularly unique with red hour and minute hands.
From 1966-1968 this reference featured legendary caliber 321.
These variations with black dials are still significantly undervalued.
Stainless steel case
Solid yellow gold case
The basis of the Omega caliber 320 is the Lemania 2310 movement and it was launched in 1942. The partnership between Lemania and Omega led to the development of the caliber 321, a three-register variation. With its compact 27mm size, it's well-suited for use in smaller chronographs under 35mm in diameter. The movement's robustness, performance, and aesthetic appeal have contributed greatly to making the Lemania 2310 one of the most important chronograph calibers in watchmaking history.
These are current models of Omega Speedmaster with caliber 321.
Nothing much written about these. But, I have found few articles about the venerable Omega caliber 321.
Hairspring article about Seamaster
Some recommended strap options for this watch. External links to their webshops.