Year of manufacture1970
TUDOR REF. 79270 CHRONO-TIME STEEL
Tudor, Oyster-Date, Automatic, "Chrono-Time", case No.
B633741, Ref. 79270, case made by Rolex, Geneva. Made circa
Fine, self-winding, water-resistant to 100 meters, stainless
steel gentleman's wristwatch with date, round button
chronograph, registers and a stainless steel Tudor Oyster
bracelet. Accompanied by a fitted box and hang tag.
Three-body, polished and brushed, screwed-down case
back, crown and buttons, black graduated revolving bezel to
measure elapsed time, "Twinlock" winding-crown, crystal
with "Cyclops" lens.
Black and white with applied steel bâton indexes and
outer tritium-coated dots, aperture for the date. Tritium-
coated steel "bâton" hands.
Cal. T 7750, rhodium-plated, 25 jewels, straight line
lever escapement, monometallic balance, shock-absorber,
self-compensating flat balance-spring, mirometer regulator.