Deep Blue DayNight Tritium Quartz Watchsearch

Deep Blue DayNight Tritium Quartz Watch

Deep Blue DayNight Tritium Quartz Watch

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Tritium-Equipped, Go-Anywhere Watch

Like any decent diver, the DayNight by Deep Blue is designed for two things: durability and legibility. That’s why it’s fitted with tritium, a radioactive substance that offers the ultimate in illumination. That’s also why it’s made with an anti-reflective sapphire crystal, for added resistance to scratches, and a polycarbonate case, for excellent durability that won’t weigh you down. And for divability, the DayNight offers 200 meters of water resistance and a 60-click unidirectional bezel, which is appointed with raised Arabic numerals in increments of five.

Note: At checkout, you’ll have your choice of eight different styles.

Deep Blue DayNight Tritium Quartz Watch

2 Tritium Colors & Other Visual Elements

With the exception of the 3 o’clock position, which is fitted with an outlined date window, the watch features Arabic numerals at the hour positions. All positions are also appointed with luminous hash markers: An orange tritium tube sits at 12 o’clock, and green tritium tubes sit at the remaining 11 positions. The syringe-style hands are also lumed, in orange, and at the 12 o’clock position of the bezel is a green tritium pip. Use the large, semi-shrouded crown at 3 o’clock to set the time and date.

Color Options

Blue accents, black strap
Blue accents, blue strap
Orange accents, black strap
Orange accents, orange strap
Red accents, black strap
White accents, black strap
Yellow accents, black strap
Yellow accents, yellow strap
Yellow quarter-bezel, black strap
Yellow quarter-bezel, yellow strap


  • Movement: Ronda 515 Swiss quartz
  • Polycarbonate case
  • Sapphire crystal with anti-reflective coating
  • Silicon strap
  • 60-click unidirectional rotating bezel
  • Tritium luminous hour markers and hands
  • Case width: 46 mm
  • Case thickness: 12.75 mm
  • Lug width: 22 mm
  • Lug-to-lug: 53 mm
  • Water resistance: 200 m


  • Zipper case
  • "Remove Before Diving" keyring patch


All orders will be shipped by Massdrop.

Estimated ship date is Sep 1, 2017 PT.

After the drop ends, payment will be collected and the group’s order will be submitted to the vendor up front, making all sales final. Check the discussion page for updates on your order.