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some nice pics and a little write up about the '57 from a massive Omega enthusiast - https://www.tapatalk.com/groups/luxe178community/another-watch-that-was-ignored-omega-speedmaster-5-t943.html

My mistake it is 44.25mm


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I like the racing speedmaster co axial version. A tad smaller at 42mm and I think different enough. I’m a big fan of the 9x00 chrono movements.

Should be able to find at decent price too.

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