TUDOR, REF. 79170 AUTOMATIC
CHRONO TIME STEEL
Tudor, "Chrono Time, Oyster-Date, Automatic,"
case No. B440310, Ref. 79170. Made in the 1990s.
Fine, self-winding, water resistant, stainless steel
wristwatch with round button chronograph, registers,
date and a stainless steel Oyster bracelet
(Ref. 78360) with deployant clasp.
Dial, case and movement signed.
Three-body, polished and brushed, screwed-down engraved case back and buttons, graduated bi-directional revolving steel bezel with black insert, Triplock winding crown protected by the crown guard, crystal with cyclops lens.
Bicolor anthracite and black with luminous baton indexes, outer 1/5th seconds track with 5-second red Arabic markers, subsidiary dials for the seconds, the 30-minute and 12-hour registers, aperture for the date. Luminous steel baton hands.
Cal. T 7750, rhodium-plated, 17 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating flat balance spring, index regulator, hack mechanism.