IWIW379403-Aquatimer Perpetual Calendar Digital Date-Month Edition “50 Years Aquatimer”

IW379403

Aquatimer Perpetual Calendar Digital Date-Month Edition “50 Years Aquatimer”

The Aquatimer sports watch has been the embodiment of functionality and adventure since its début in 1967. IWC celebrates the watch family's 50th birthday with the first case made of Ceratanium®.

IW379403

Aquatimer Perpetual Calendar Digital Date-Month Edition “50 Years Aquatimer” Add to my wishlist

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  • Ceratanium® case
  • Automatic, self-winding
  • Black rubber strap with IWC-patented quick-change system
  • Diameter 49.0 mm

This watch is available in different materials and colours

See variations

IW379403 Specifications

case

case

  • Ceratanium® case
  • Diameter 49.0 mm
  • Height 19.5 mm
  • Screw in crown
  • See-through sapphire glass back
  • Water resistance 10 bar

Movement

Movement

  • 89802 Calibre
  • Automatic, self-winding
  • Frequency 28800.0 vph (4.0 hz)
  • 51 Jewels
  • 68 hours Power Reserve
  • IWC-manufactured movement
  • Côtes de Genève, perlage

Features

Features

  • Perpetual calendar with large double-digit displays for date and month and leap year display
  • Chronograph function with hours, minutes and seconds
  • Hour and minute counters combined in a totalizer at 12 o’clock
  • Flyback function
  • Mechanical external/internal rotating bezel with SafeDive system
  • Sapphire glass, convex, antireflective coating on both sides
  • IWC bracelet quick-change system
  • Small hacking seconds
  • Limited to 50 pieces

dial

dial

  • Black dial with luminescence

Strap

Strap

  • Black rubber strap with IWC-patented quick-change system
  • Strap width 22 MM

The Aquatimer Perpetual Calendar Digital Date-Month Edition “50 Years Aquatimer” Story

The most striking feature of the Aquatimer Perpetual Calendar Digital Date-Month Edition “50 Years Aquatimer” is the matte black Ceratanium® case. A team of specialists at IWC worked for more than 5 years to develop this new material, which is based on a titanium alloy. A special manufacturing process gives the metal a black, ceramic finish. As light and robust as titanium, Ceratanium® is also as hard and scratch-resistant as ceramic. Furthermore, the material boasts high skin tolerance and corrosion-resistance. The watch features a black dial to complement the case, while the self-winding IWC-manufactured 89802-calibre has several components which are finished in black, including the rotor. The integrated digital perpetual calendar displays the date and the month with large digits in the style of a digital watch. It recognizes leap years and the different lengths of the months. The chronograph with flyback function displays stopped times combined in a totalizer at 12 o’clock.

Calibre Family 89000

The 89000-calibre family includes powerful chronograph movements with flyback function, which are used, for example, for the big digital date and month displays or for watches that display stopped hours and minutes on a subdial.

Perpetual calendar with digital date and month displays

The perpetual calendar with four display discs consists of 185 individual parts and shows the date and month with large digits in separate windows. It also features a leap year display in a small window.

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