Rolex, Oyster, Speedking, Precision, Ref. 6431,CassaNo. 1329677, center seconds, water resistant, stainless steel mid-sized [..]
Case: Three-body, polished, stainless steel screwed-down case back and crown, engine turned bezel with hour divisions. Dial: Matte silver with applied baton indexes and luminous dots, outer minute/seconds divisions. Luminous stainless steel “baton” hands. Movimento: Cal. 1225, rhodium-plated, 17 jewels, straight line lever escapement, Gyromax balance, shockabsorber, self-compensating flat balancespring. Dial, case and movement signed. Diam. 31 mm. Thickness 9.5 mm.Dial, case and movement in good conditionNOTE:Reference 6431 appeared in the Rolex catalogue from 1964 through 1987.