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Aquatimer

Introduced: 1967

Purpose / Inspiration: The Aquatimer was IWC’s first dedicated dive watch—built at a time when recreational diving was taking off. Instead of copying Rolex or Blancpain, IWC used an internal rotating bezel (protected under the crystal) for timing dives. It was tool-first, form-second—but over the years, it evolved into a professional-grade diver with bold design, serious water resistance, and IWC’s engineering muscle.

Designer: Originally designed in-house at IWC Schaffhausen as a response to growing demand for robust, legible underwater instruments

Case size:

  • Vintage: ~37mm
  • Modern: 42mm to 46mm depending on model (e.g. Automatic 2000, Chronograph, Expedition Jacques-Yves Cousteau)

Case options:

  • Stainless steel, titanium, bronze, and Ceratanium® (IWC’s proprietary ceramic/titanium composite)
  • Some limited editions in 18k gold

Powered by:

  • Modern models use IWC in-house movements (Cal. 80110, 89365, etc.)
  • Older and entry models feature modified ETA bases
  • Chronographs and depth-gauge versions available

Bezel:

  • Early models: internal rotating bezel with secondary crown
  • Modern models: SafeDive system—external bezel that mechanically rotates the internal scale (unidirectional, gear-coupled)

Dial options:

  • Matte black, blue, or silver
  • Large Arabic numerals or indices with Super-LumiNova
  • Date at 3 or 6 o’clock; some with subdials for chronograph or depth gauge

Water resistance:

  • Standard models: 300m
  • Aquatimer Automatic 2000: 2000m
  • Chronographs: 120m to 300m depending on ref

Bracelet:

  • Rubber strap or stainless steel bracelet
  • Quick-change system allows tool-free swapping between straps/bracelets
  • Dive extension included on some steel bracelets

Still in production, with frequent limited editions honoring Cousteau and environmental causes

Why it matters: The Aquatimer isn’t the flashiest dive watch—but it’s a real diver’s tool, with Swiss precision and IWC toughness. It evolved with tech, not trends. It’s what you wear when you want a serious diver without looking like everyone else.

Made to Dive, Built to Last: The Aquatimer doesn’t just look rugged—it is

SafeDive = Smart Dive: Gear-coupled bezel means precision timing under pressure

2000m? Yes, Really: The Automatic 2000 isn’t messing around

One Watch, Two Looks: Quick-change straps swap style in seconds

References for Aquatimer