Pilot Double Chronograph Ratrappante

IWC Double Chronograph – Ref. IW377801 (Rattrapante, 46 mm, Black Dial)

The IWC Double Chronograph Ref. IW377801 is a bold and technically impressive pilot’s chronograph featuring a rattrapante (split-seconds) complication. With its substantial 46 mm case and functional aviation-inspired design, it represents one of the most striking modern IWC tool watches.

Case
Crafted in stainless steel, the case measures 46 mm, delivering strong wrist presence. It features a sapphire crystal, screw-down crown, and solid construction consistent with IWC’s professional Pilot’s line.

Dial
The black dial follows IWC’s classic pilot layout with large Arabic numerals, luminous hands, and a highly legible chronograph display. The split-seconds hand allows simultaneous timing of two events — a sophisticated and rare complication in this segment.

Movement
Powered by the IWC Calibre 79420., an automatic chronograph movement based on the Valjoux 7750 architecture and modified by IWC to incorporate the rattrapante function. It offers robust performance and approximately 44 hours of power reserve.

Strap
Fitted with an aftermarket leather strap, paired with the original IWC stainless-steel buckle, preserving an important element of authenticity.

Condition
Excellent overall condition with light signs of wear. The movement runs accurately. No service history available.