I’m a fan of the 135.041 Omega Geneve case.
They wear a little wider than other dress Omegas of that generation but are still slim in depth.
Although the hand wind 601 calibre is a great movement, IMO, you might consider an automatic 552 (no date) 165.041 case or 565 (date only) 166.041 case, which are insignificantly deeper but, again IMO, even better movements, all in the same 1**.041 case
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