Rolex Sea-Dweller 1665

ROLEX gents wristwatch Oyster Perpetual Date Sea-Dweller reference 1665, Switzerland around 1978, self winding, superlative chronometer officially certified in stainless steel including oyster bracelet "reference 93150, endlinks 580", diver extension, screwed down winding crown and case back with Rolex- lettering, helium valve outside at 9, bidirectional revolving bezel with 60-minutes graduation, black service-dial with luminous indices, luminous hands, date at 3, calibre 1570, 26 jewels, 5 adjustments, Glucydur- screws-balance, balance-stop at hand-setting, diameter approx. 40 mm, length approx. 19 cm, collectable, signs of use otherwise condition 2