1967 Omega Speedmaster Professional Pre-Moon Cal. 321 Ref. 145.012 with Inner and Outer Boxes Wallet Hang Tag Instruction Booklet on Mint 1039 Bracelet – Corr Vintage Watches
▻▻ Omega Speedmaster Calibre 321 VS. The Original 105.003 (2021)
HANDS-ON: The Omega Speedmaster 321
Bonhams : Omega. A stainless steel manual wind chronograph bracelet watch Speedmaster Calibre 321, Ref 311.30.40.30.01.001, Purchased 23rd February 2021
Speedmaster cal. 321 AD says SOL | WatchUSeek Watch Forums
1967 Omega Speedmaster Professional Pre-Moon Cal. 321 Ref. 145.012 with Inner and Outer Boxes Wallet Hang Tag Instruction Booklet on Mint 1039 Bracelet – Corr Vintage Watches
Bonhams : Omega. A stainless steel manual wind chronograph bracelet watch Speedmaster Calibre 321, Ref 311.30.40.30.01.001, Purchased 23rd February 2021