Timex Waterbury Black Round Dial Analog Men's Watch 39mm TW2Y23300UJ Size Case:39mm Blood Oxygen

Blood Oxygen

three-hand movement with an antimagnetic Nivachron™ hairspring that holds accuracy well beyond standard test requirements

This exquisite 40mm watch features a captivating open-heart design

Body Temperature Monitor

directly to the surfer’s wrist

Timex Waterbury Black Round Dial Analog Men's Watch 39mm TW2Y23300UJ Size Case:39mm Blood OxygenDefined by sharp lines and sweeping curves, the Waterbury Sub second features an enhanced 39mm stainless steel case with a slimmer profile and an elegant two tiered bezel. Encircling the black dial are Roman numeral markers and a rail track, paired with a 24 hour format sub dial just above 6 oclock. This sophisticated timepiece is paired with a stainless steel bracelet.