ROLEX REF 1680 SUBMARINER STEEL
Rolex, "Oyster Perpetual Date, Submariner, 660 ft = 200 m,
Superlative Chronometer, Officially Certified", case No. 5037002,
Ref. 1680. Made in 1977.
Fine, center seconds, self-winding, water-resistant, stainless steel
wristwatch with a Rolex stainless steel bracelet and deployant clasp.
Three-body, polished and brushed, screw down case back with
dedication inscription and crown, graduated bi-directional revolving
black bezel for the decompression times, Triplock winding
crown protected by the crown guard, crystal with Cyclops lens.
Black with Submariner in red letters, luminous round, triangular
and baton indexes, outer minutes/ seconds divisions, aperture
for the date. Luminous steel skeleton hands.
Cal. 1570, rhodium-plated, oeil-de-perdrix decoration, 26 jewels,
straight-line lever escapement, monometallic balance adjusted
to temperatures and 5 positions, shock absorber, self-compensating
free- sprung Breguet balance spring, Microstella regulating
screws.