This 35mm. 1952 stainless steel caliber 321 OMEGA SEAMASTER is a prize! The original “Havana” aged dial is spectacular to gaze upon. The pencil hands are original. This is the earliest caliber 321 I’ve ever seen! The OMEGA crystal is signed. The steel OMEGA ref. 2451 case retains the correct winding crown and round pushers. The caliber 321 (legendary) movement is the same as found in the Omega Speedmaster. This manual winding OMEGA 321 was just cleaned and all functions are operating smoothly and accurately. I believe these watches are undervalued. Try to find a nicer original dial for a watch of this age!