Ingenieur Perpetual Calendar Digital Date-Month Titanium

In Context

At 46 mm it is a large watch — well above this catalogue’s 40 mm median, and enough to dominate a narrow wrist. At 17 mm it is very tall, and sits high off the wrist. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. 120 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement winds itself from the motion of your wrist. 68 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 28,800 vph the seconds hand advances 8 times a second.

IW3792-01 is one of 2 executions of the IW3792 base reference. Underneath they are the same watch; what separates this one is a grey dial and a titanium case. Beyond the time it carries a perpetual calendar.

Mechanical chronograph movement, stopwatch function with hours, minutes and seconds, hour and minute counters combined in a totalizer at 12 o'clock, flyback function, small hacking seconds, perpetual calendar, large double-digit display for both the date and month, leap year display. Slightly different finish compared to 89801.

6 other watches in the library run the IWC 89802.

IWC

Aquatimer Perpetual Calendar Digital Date-Month Edition 50 Years Aquatimer

IW3794-03 · 49 mm

IWC

Aquatimer Perpetual Calendar Digital Date-Month Aquaman and the Lost Kingdom / Red

IW3794-05 · 49 mm

IWC

Aquatimer Perpetual Calendar Digital Date-Month Aquaman and the Lost Kingdom / Blue

IW3794-06 · 49 mm

IWC

ilot's Watch Performance Chronograph Perpetual Calendar Digital Date-Month Ceratanium / Black / Bracelet

IW3888-01 · 43 mm