A Timex TX Technoluxury 730 Series mens fly back chronograph with compass and second time zone, model T3B921, in black PVD with a black dial and orange hands. The case back is marked TX Technoluxury, T3B921, sapphire crystal, stainless steel, movement design Germany, and 10 ATM.

This is a large sport chronograph with a rotating compass bezel, tachymeter scale, fly back chronograph, and second time zone. The dial is black with large Arabic numerals at 12, 3, 6 and 9, luminous markers, and orange chronograph hands. The bracelet is black PVD stainless steel with a folding clasp.

Details and Measurements

Brand: Timex TX

Model: Technoluxury 730 Series, T3B921

Movement: Quartz

Dial: Black, Arabic numerals, orange chronograph hands, luminous markers

Case: Stainless steel, black PVD, sapphire crystal, 10 ATM

Case size: Approx 47 mm top to bottom, glass approx 35 mm across

Bracelet: Black PVD stainless steel link bracelet, folding clasp

Bracelet length: Approx 13 cm closed, measured inside, not counting the watch

Clasp: Folding clasp, works

Condition and Operation

Used vintage condition with wear consistent with age, including light scuffs and surface marks on the case and bracelet, as pictured. Please review all photographs carefully as they form part of the condition description. The watch runs with a fresh battery fitted November 10, 2026. Accuracy has not been tested. The chronograph and compass functions have not been tested. It has not been professionally serviced. It is sold as a running vintage watch with no guarantee of accuracy or future operation. Water resistance has not been tested and is not guaranteed after the case back was opened for the battery.