Year of manufacture1111
ROLEX REF. 16600 SEA DWELLER 4000 STEEL
Rolex, "Oyster Perpetual Date, Sea Dweller 4000ft = 1220m,
Superlative Chronometer Officially Certified," case No. U491642,
Ref. 16600. Made in 1997.
Fine, center seconds, self-winding, water-resistant, stainless steel
diver's Chronometer wristwatch with date, helium escape valve
and a stainless steel Rolex Oyster Ref. 93160 extendable Fliplock
Three-body, polished and brushed, screwed-down engraved
case back, graduated unidirectional revolving black bezel for the
decompression times, Triplock winding crown protected by the
crown guard, gas-escape valve at 9, sapphire crystal.
Black with luminous white gold round, triangular and baton
indexes, outer minute/seconds division, aperture for the date.
Luminous white gold skeleton hands.
Cal. 3135, rhodium-plated, 27 jewels, straight-line lever
escapement, monometallic balance adjusted to temperatures
and 5 positions with Microstella timing screws, shock absorber,
self-compensating Breguet balance spring, Microstella regulating
screws, hack mechanism.