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The new IWC Annual Calendar with the 52850 in-house movement reduces the calendar problem to a single manual adjustment at the end of February. And that‘s it.

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Balance of power

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Experiences

98295 Calibre

Text — IWC Photos — Christian Coigny Date2010-01-01T00:00:00

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Experience - 98295 Calibre - Hero

This movement brings together traditional technologies with modern watchmaking craftsmanship

—Kurt Klaus

The IWC-manufactured 98295 calibre takes its stylistic elements from the first Jones calibres; a further-improved movement based on the original calibre (98, 9820) found in the early Portuguese watches now drives the new Portuguese Hand-Wound, among other things.

Explore More Articles
IWC Da Vinci Perpetual Calendar Sketch
Putting eternity on your wrist

During his time as head watchmaker at IWC, Kurt Klaus translated the Gregorian calendar with all its many irregularities into a mechanical program that will continue running perfectly until 2499 with virtually no corrections from outside.

Ingenieur Constant-Force Tourbillon
The constant is the force

IWC's constant-force mechanism ensures that the escapement delivers an absolutely even supply of power and delivers unprecedented precision.

breguet_spring
Increased precision
down to the overcoil

In some IWC calibres, the balance rim oscillates to and fro on a Breguet spring. The terminal coil is painstaking shaped by hand and plays a significant role in ensuring that the balance oscillates with perfect regularity, thus increasing the watch's precision.

IWC Portugieser Annual Calendar
IWC Annual Calendar:
The New Small Eternity

The new IWC Annual Calendar with the 52850 in-house movement reduces the calendar problem to a single manual adjustment at the end of February. And that‘s it.

IWC Portugieser Tourbillon Mystère Rétrograde
Where time flies

Ask watchmakers, and one thing is soon clear: their favourite complication is the tourbillon.

IWC 52010 calibre
Pellaton's ingenious automatic meets state-of-the-art engineering

A matter of adjustment

For an IWC watch to run accurately, the oscillations of the balance require careful adjustment.

Unruhreif_Spirale.jpg
Balance of power

A mechanical watch continues to show the correct time even as the tension in the mainspring diminishes. Making this possible is a mechanism that has been gradually improved for over 300 years: the escapement.