Letter from the Publisher

IWc ScHAFFHAUSEN
DA VINcI PERPETUAL cALENDAR DIGITAL DATE MONTH – REF. IW376101
In 1884, IWC secured the rights to the Pallweber system developed by Joseph Pallweber and started producing the first “digital”
watches in IWC's history. Rather than an analog display with hands, digits were presented in separate windows; only the seconds
were shown via a hand. Now, 125 years later, IWC presents the Da Vinci Perpetual Calendar Digital Date-Month with large-figure
digital displays for the date and the month. The power required to switch both month and date discs at the end of the month is
accumulated 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 displays are advanced, even the digital leap year if necessary. The chronograph can run
continuously without having any noticeable effect on the watch's rate and, thanks to the flyback function, can be reset to zero
without being stopped. The new IWC-manufactured 89800 caliber consists of 474 individual parts and builds up a power
reserve of 68 hours. The movement is a massive watchmaking achievement.
Calendars 93 •