Rolex. A Fine and Rare Stainless Steel Automatic Dual Time Wristwatch Date and Center Seconds

Rolex. A Fine and Rare Stainless Steel Automatic Dual Time Wristwatch Date and Center Seconds
Signed Rolex, Oyster Perpetual, GMT-Master, Ref. 1675, Case No. 694'422, Circa 1961
Cal. 1560 automatic movement, 26 jewels, black matte dial, luminous dot, baton and dagger numerals, luminous Mercedes-style hands, luminous central hand for the second time zone, magnified date window, center seconds, tonneau-shaped water-resistant-type case, revolving blue and faded red bezel calibrated for 24 hours, pointed crown guards, screw back, screw down crown, later stainless steel Rolex Oyster fliplock link bracelet, case, dial and movement signed
40mm diam.