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IW379402

Aquatimer Perpetual Calendar Digital Date-Month Add to Wishlist

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IWC Schaffhausen Boutique – Schaffhausen

Baumgartenstrasse 15 8200, Schaffhausen +41526305030
Opening Hours
Monday: 9:00 AM - 5:30 PM
Tuesday: 9:00 AM - 5:30 PM
Wednesday: 9:00 AM - 5:30 PM
Thursday: 9:00 AM - 5:30 PM
Friday: 9:00 AM - 5:30 PM
Saturday: 9:00 AM - 3:30 PM
  • 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

THE STORY

With its impressive case diameter of 49 millimetres, the Aquatimer Perpetual Calendar Digital Date-Month turns heads both on land and underwater. The combination of 18-carat red gold with a blue dial and titanium gives the watch an appearance that is at the same time luxurious and sporty. In order to advance its large month display discs, the watch requires more power than the in-house automatic 89801-calibre movement can provide. When the date display advances at night, therefore, the quick-action switch taps a little of the energy, stores it, and then discharges it at the end of the month. The date and month discs have semi-transparent perforated covers that provide a view of the complex mechanism within. The rotor behind the see-through sapphire-glass back is distinctly functional-looking and likewise alludes to the reliability of research submarines. The exclusive flagship of the collection is limited to 50 watches and water-resistant to 10 bar.

Specifications

case

  • Diameter 49.0 MM
  • Height 19.5 MM
  • Screw in crown
  • See-through sapphire glass back
  • Water resistance 10 bar

Movement

  • 89801 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

  • 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

dial

  • Blue dial with luminescence

Strap

  • Black rubber strap with IWC-patented quick-change system
Calibre Family 89000

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

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.

Watches like this

IW379402

Aquatimer Perpetual Calendar Digital Date-Month

Blue dial Black rubber strap with IWC-patented quick-change system

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