OMEGA chronograph Speedmaster Professional Mark III, self winding, Switzerland around 1970, reference 176.002, stainless steel case, dial on customer request replaced (Speedmaster 125), glass has to be replaced, screwed down case back with sea horse logo rubbed, 60-minutes & 12-hour-counter, permanent second & 24-hour-display at 9, tachometer graduation on the bezel, movement gold-plated, 22 jewels, calibre 1040, diameter approx. 41 mm, neutral steel-bracelet, has to be repaired or as spare parts source, condition 4-5

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