Isobrite T100 Chronograph Black-Green Rubber ISO401 - Sportique

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Isobrite Chronograph ISO401 Black-Green Watch | Rubber

Isobrite is the world's first T100 tritium illuminated lightweight polycarbon watch. Unlike ordinary tritium watches that use T25 tritium illumination, the Isobrite watch uses ultra bright T100 tritium illumination. This makes it 4 times brighter than the competition. The Chronograph is the best of the Isobrite line with lightweight polycarbonate construction and ultra bright tritium illumination.

  • Movement: Swiss Ronda 5040.D Quartz
  • Battery: 54-months
  • Crystal: Anti-reflective scratch resistant sapphire crystal
  • Case Construction: Polycarbonate
  • Case Diameter: 47mm
  • Case Thickness: 11mm
  • Crown: 4mm water-resistant push-down
  • Bezel: Unidirectional ratcheting with two tritium markers
  • Band Material: Nitrile Butadiene Rubber (NBR)
  • Band Width: 24mm
  • Band Clasp: Buckle with logo
  • Maximum Wrist Circumference: 9.75
  • Water Resistance: 200 meters (20 ATM / 660 feet)
  • Warranty: 2 years
  • Extras: Zippered travel case with extra nylon band

Free Shipping on All Domestic Orders
Shipping from San Francisco, CA

See international and additional shipping information here. Tax is only charged if shipping to California.


If, for any reason, your purchase wasn't exactly perfect, we honor return requests within 30 days from the original purchase date. To be eligible for a return, your item must be unused and in the same condition that you received it in. It must also be in the original packaging. Customer is responsible for return shipping costs. To initiate a return, please fill out the quick form at the bottom of our Returns Page.

Please note that special or custom-made orders are non-refundable, as well as any body care or hygienic products (you wouldn't want to purchase used body wash, right?).

For large adventure items, such as kayaks or paddle boards, a 20% restocking fee will be incurred as we do team lifts to repackage and put these heavy items back into storage. We're sorry about that!

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