Da Vinci Family

Da Vinci Perpetual Calendar Digital Date-Month

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reference 3761

One hundred and twenty-five years after the Pallweber, the first “digital watch” in its history, IWC unveiled the Da Vinci with perpetual calendar, a digital date display and, for the first time ever, the month in large digits. The 89800 calibre comprising 474 individual parts builds up a power reserve of 68 hours.

Highlights

  • Mechanical chronograph movement
  • Perpetual calendar
  • Digital display of date and month
  • Flyback function
  • Case Dimensions 44 x 52.8 mm

Price: $44,300

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A BIG DATE FOR THE PERPETUAL CALENDAR

In 1884, using the Pallweber system, IWC produced the first “digital” watches in its history. These did not show the hours and minutes on an analogue display with hands, but with numerals in separate windows. 125 years later, IWC presented the Da Vinci Perpetual Calendar Digital Date-Month with digital displays for both the date and, for the first time, even the month with large numerals. The power required to switch both month and date discs at the end of the month is accumulated in the spring over the course of the entire month in a quick-action switch specially developed for this purpose. At the end of the month, the energy is released and ensures that the displays are advanced, even if the digital leap year display also needs to be switched at the same time. Thanks to the flyback function, the chronograph can be reset to zero without first having to be stopped. The IWC-manufactured 89800 calibre consists of 474 individual parts and builds up a power reserve of 68 hours.

Variations

Details

  • Reference IW376107
  • Case Material 18-carat rose gold
  • Bracelet/Strap dark brown alligator leather strap
  • Dial Colour silver-plated
  • Jewels 52
  • Calibre 89800
  • Price $44,300
  • Mechanical chronograph movement
  • Self-winding
  • 68-hour power reserve when fully wound
  • Perpetual calendar with crown-activated rapid advance
  • Large double-digit displays for both the date and month
  • Leap year display
  • Stopwatch function with hours, minutes and seconds
  • Hour and minute counters combined in a single totalizer at 12 o'clock
  • Flyback function
  • Small hacking seconds
  • Screw-in crown
  • Sapphire glass, convex, antireflective coating on both sides
  • See-through sapphire-glass back
  • Water-resistant 3 bar
  • Case height 16.3 mm
  • Case dimensions 44 x 52.8 mm

Watch Viewer

  • IW376107 Watch Front
  • IW376107 Watch Back

Enlarge

Digital Date Display

IWC produced the first “digital” watches in its history as early as 1884. These timepieces, known as Pallweber watches, displayed the hours and minutes using numerals, while the seconds were shown in analogue form with a hand. In 2009, IWC unveiled a surprise for watch lovers in the form of a newly developed perpetual calendar movement, which shows not only the date but also the month in large numerals. In 2013, the year of the Ingenieur, tinted glass inlays on the dial of the Ingenieur Perpetual Calendar Digital Date-Month provide a view of the discs at work. The energy required to advance the month display discs is built up continuously throughout the month by a quick-action switch. A spring-loaded lever on the quick-action switch is lifted a tiny bit further each day by a cam. At the end of the month, the tension in the spring has reached its maximum, and it is time for all that energy to be released; the quick-action switch jumps instantaneously to its starting position and advances both of the month display discs individually, or together, by one position, depending on the month. On 31 December, the leap year disc is also advanced at the same time.

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