'Double-Red' Sea-Dweller, Ref:1665, Mark IV dial, Serial No.175****, Circa 1973
26-jewel Cal.1570 automatic movement adjusted to temperature and 5 positions, black dial signed in red Sea-Dweller Submariner 2000, luminous round, triangular and baton indexes, luminous filled Mercedes hands, date aperture at 3, brushed and polished tonneau shaped case with screw down back and Oyster crown, helium escape valve at 9, calibrated bi-directional black bezel for decompression times, stainless steel Oyster link bracelet numbered 9315 with 380 end links and deployant clasp, together with fitted Rolex box, service guarantee card dated 21st November 2013 and pouch, case, dial and movement signed

40mm.