The APSF IWC Portugieser Yacht Club Chrono IW390204 is the most athletic member of the Portugieser family, engineered to serve as a precision nautical instrument. Housed in a substantial 45.4 mm stainless steel case, this model uniquely features crown protection and luminescent hands to ensure utility in maritime conditions. The deep black dial is balanced by a revolutionary single-totalizer at 12 o’clock, which combines hour and minute counters for intuitive elapsed-time reading. At its heart is the APSF-manufactured Calibre 89361, a sophisticated flyback chronograph that allows for instant restarting of the stopwatch function. The movement’s advanced pawl-winding system increases efficiency by 30% and is visible through a sapphire exhibition caseback. Paired with a durable black rubber strap and offering 6 bar water resistance, it is the perfect companion for sailing and water sports. This timepiece represents a flawless integration of elegant Swiss tradition and modern sporting capability.
Model Reference: IW390204
Case Diameter: 45.4 mm
Case Material:Stainless Steel
Movement: APSF -manufactured Calibre 89361 (Automatic)
Power Reserve: 68 hours
Complications: Flyback Chronograph, Date, Small hacking seconds
Resistance: 60 metres / 6 bar
Strap: Black rubber with IWC deployment clasp
