The IWC Aquatimer Chronograph (Ref. IW376803) is a modern, robust, and performance-driven dive watch designed for enthusiasts who appreciate precision engineering and everyday versatility. Released as part of IWC’s 2019 Aquatimer lineup, this model blends professional dive functionality with the refined, technical style the brand is known for.
 
At 44mm, the stainless-steel case delivers strong wrist presence without feeling bulky, thanks to its ergonomic lugs and balanced proportions. The standout feature is IWC’s SafeDive internal/external rotating bezel system, combining the tactile feel of an external bezel with the security of an internal one for safer underwater timing. The matte black dial offers excellent legibility, featuring bold hands, clean chronograph sub-dials, and luminous markers that perform well in low-light or deep-dive conditions.
 
Powering the watch is the reliable IWC Calibre 79320, an automatic chronograph movement based on the Valjoux 7750 architecture. It delivers proven durability, a 44-hour power reserve, and precise stopwatch capability—ideal for sports timing or daily use. With 300 metres of water resistance, the IW376803 is built for real diving but remains stylish enough for office or weekend wear.
 
A practical rubber strap with IWC’s quick-change system makes swapping straps fast and tool-free. Whether you prefer a sporty look or a more refined one, the Aquatimer adapts easily.
 
Overall, the IWC Aquatimer Chronograph IW376803 is a dependable, functional, and versatile luxury diver—perfect for collectors who want a rugged tool watch with the sophistication of IWC’s engineering and design language.