IWC 3902 Portuguese Yacht Club Chronograph, IW390206, 3902-06, 390206, Stainless Steel on a Black Rubber Strap with a Stainless Steel Deployant Buckle, Automatic (IWC calibre 89360), Silver Dial with Applied Silver Numerals and Hands, Flyback Chronograph: The sub-dial at the 12 o'clock position doubles as both the chronograph 60 minute counter (longer hand pointing to outer diameter) & the 12 hour counter (short hand pointing to marking on inner diameter),Small Seconds at 6 O'clock, Sapphire Crystal, Water Resistant, Diameter: 45.4 mm, Thickness: 14.5 mm, Serviced by IWC Last year (paperwork included), Near Mint with Box and Papers.