IWC IW371445 Portuguese Chronograph SS Silver Dial / Gold Numerals (31083)

31083 IWC 3714 Portuguese Chronograph, IW371445, 371445, 3714-45, stainless steel on a strap with a stainless steel deployant buckle, automatic, silver dial with applied rose numerals, chronograph, small seconds at 6 o'clock, sapphire crystal, water resistant to 3 atm, diameter: 40mm, thickness: 13mm, like new with box and papers dated 11 / 2015.


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More about IWC IW371445 Portuguese Chronograph SS Silver Dial / Gold Numerals

This is a stainless steel IWC Portuguese Chronograph, IW371445. It has an alligator leather strap with a stainless steel double deployant clasp, and a domed scratch resistant sapphire crystal. It has a solid, 41mm diameter three-body polished and brushed case with an overhanging "deep dish" bezel, and downturned lugs. There are gold feuille hands and a screw-down case back with four screws. The dial is silver with applied rose gold Arabic hour numerals and outer dot minute divisions, with an outermost track having a 1/5th seconds scale with 5-minute/seconds sectors. The round button chronograph has silver subsidiary dials for the small seconds at 6 o'clock, and a 30-minute register at 12. It's water resistant to 30 meters/100 feet, and the 13mm thick case, dial, and movement are all signed.

The automatic caliber 79240 movement is gilt brass with oeil-de-perdrix embellishment. It's constructed with 31 jewels, a monometallic balance adjusted to 5 positions, and a straight-line lever escapement. There is a shock absorber mechanism and a, self-compensating flat balance spring, as well as a hacking seconds mechanism.

The round case design Portuguese family was initiated in 1939 by IWC to honor Portugal’s great seafaring explorers like Vasco da Gama, Ferdinand Magellan, and Bartolomeu Dias. The line has grown to have formidable complications and designs that reference the tradition of nautical instruments.