Condition New/Unworn Case Shape Round Case Dimensions 39mm Case Thickness 12.7mm Case Material Stainless Steel Dial Color Green Crystal Scratch Resistant Sapphire Screw-in Crown No Water Resistance

No rating	Does not allow contact with water
30m/99ft – 50m/165ft	Allows for contact with water such as washing hands and rain
50m/165ft – 100m/330ft	Allows for light poolside swimming
100m/330ft – 200m/660ft	Allows for swimming, snorkeling and showering (do not expose to hot water)
200m/660ft – 500m/1650ft	Allows for impact water sports such as board diving and scuba diving
500m/1650ft +	Appropriate for serious deep water diving.

Learn more about Water Resistance.

Close 30m/3atm/99ft Case Back Solid Band Material Alligator/Crocodile Leather Color/Finish Green Clasp Tang Buckle Lug Width 20mm Movement Automatic An automatic/self-winding movement is powered by a thin spiral torsion spring, called the mainspring, which is housed in an enclosed barrel inside the movement. The energy produced from the wound spring drives the movement functions. An automatic watch has a weighted rotor mounted on a pivot to the back of the movement, and the rotor is connect to the mainspring through a series of gears. The natural motion of the wearers wrist will cause the rotor to spin, which in turn will automatically wind the mainspring. Please note: An automatic winding watch which has completely wound-down or is at the end of its power reserve requires manual winding. Manually winding an automatic watch ensures that the watch is at full power-reserve when first worn, and as long as the watch is in motion thereafter it will remain fully wound, ensuring that when the watch is removed it will run the specificed power-reserve duration. Close Complications Chronograph

Case: stainless steel – polished Dial: green – sunray Hour Markers: applied, index, polished Hands: polished Seconds hand: sub-dial at 6 o’clock Calibre: IWC calibre 79350, beats at 4Hz/28800 vph, 31 jewels, power reserve of 44 hours (2 days)Watch functions: Chronograph: Large central seconds counter hand, 30 minute counter sub-dial at 12 o’clock.

Mens IWC IW391405 Portofino Chronograph 39mm Watch