- Case diameter: 42 mm.
- Case thickness: 13.5 mm.
- Strap width: 20 mm.
- Water-resistant at 30 meters / 100 feet.
- Functions: chronograph, date, hour, minute, second.
- Watch label: Swiss Made.
IWC Portofino Automatic Chronograph Silver Dial
IWC Portofino Silver Dial Chronograph Brown Leather Men's Watch IW391007.
Stainless steel case with a brown (crocodile) leather strap. Fixed stainless steel bezel. Silver 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 44-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown