Pre-owned IWC Aquatimer Chronograph IW376709 (2024). The Aquatimer is IWC’s dedicated dive watch collection, combining serious underwater capability with the brand’s clean, instrument-style design. This chronograph version takes things a step further by adding timing functionality that feels right at home on a professional dive watch. The watch features a substantial 45.6mm stainless steel case paired with a durable black rubber strap, giving it a strong tool-watch presence on the wrist. The black dial is designed for clarity, with bold hour markers and hands for great legibility, while the bezel includes a distinctive yellow 15-minute countdown segment used to track the most critical part of a dive. At 3 o’clock, the dial displays both the day and date, and the chronograph layout allows you to measure hours, minutes, and seconds. Inside beats IWC’s automatic movement with a 44-hour power reserve. Shop IWC Aquatimer Collection