- Case diameter: 42 mm.
- Case thickness: 13.2 mm.
- Strap width: 20 mm.
- Water-resistant at 30 meters / 100 feet.
- Functions: chronograph, date, day, hour, minute, second, stopwatch. Watch label: Swiss Made.
IWC Portofino Automatic Chronograph Black Dial
IWC Portofino Automatic Chronograph Black Dial Black Alligator Leather Strap Men's Watch IW391008
Stainless steel case with a black (alligator) leather strap. Fixed stainless steel bezel. Black dial with silver-tone hands and index hour markers. Roman Numerals mark the 6 and 12 o'clock positions. Minute markers around the outer rim. Dial Type: Analog. Day of the week and date display at the 3 o'clock position. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour. Automatic movement with a 44-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Solid case back.