Circa 1970, Ref. No. 1675 Having a black matte dial with circular and triangular numerals, magnified aperture for date within a tonneau water resistant-type-case with screw down crown and revolving bezel calibrated for 24 hours. The lever movement, monometallic compensation balance, 25 jewels, adjustments to five positions. With a stainless steel Rolex Jubilee bracelet and clasp. Case, dial and movement signed. D: 39 mm See Illustration.