ROLEX/TIFFANY Sea-Dweller 'DOUBLE RED' reference 1665 very rare diving watch in steel, Switzerland around 1972, self winding, oyster case with black turning bezel, screwed down case back with straight Rolex-lettering & winding crown, later nearly new oyster bracelet reference 93150, lugs no. 585, black Mk 3 dial at 5 slightly damaged, nice patinated luminous indices & hands, rhodium plated movement calibre 1570, 26 jewels, 5 adjustments, Rolex-service-warranty of January 2018, second bezel-inlay without luminous dot as well as later Rolex-box enclosed, diameter approx. 40 mm, length approx. 20 cm, condition 2