Ingenieur Double Chronograph Titanium / Black

In Context

At 45 mm it is a large watch — well above this catalogue’s 40 mm median, and enough to dominate a narrow wrist. At 16 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. 44 hours of reserve carries it overnight, but not through a weekend in a drawer. At 21,600 vph the seconds hand advances 6 times a second, the slower and more audible rate of an older design.

(79420 stands on its own in this catalogue — no other reference here shares its base number. It pairs a black dial with a titanium case. Beyond the time it carries a chronograph.

Rattrapante / Split Seconds movement with day and date window.

6 other watches in the library run the IWC 79420.

IWC

Pilot's Watch Double Chronograph Le Petit Prince

IW3718-07 · 44 mm

IWC

Pilot's Watch Double Chronograph Le Petit Prince Sothebys

IW371810 · 44 mm

IWC

Pilot's Watch Double Chronograph Stainless Steel / Black-Silver / Calf / Watches of Switzerland

IW3718-13 · 44 mm

IWC

Ingenieur Double Chronograph Titanium / Silver

IW3865-01 · 45 mm