An Omega Speedmaster Mk40 ref. 3520.53.00 Day Date automatic chronograph wristwatch the grey dial with bold luminous hands, Arabic numerals, day and date apertures, and three subsidiary seconds and chronograph dial, the date hand with yellow plane tip, with black tachymetre bezel, on a later black leather strap, with cal. 1151 movement. 38 mm case, with box.

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