The Basics

With its new 37-millimetre Portofino Midsize Automatic, IWC Schaffhausen has made the classically elegant three-hand timepiece more attractive to watch lovers with slimmer wrists. The ten models with their diamond-set bezels or dials will appeal to buyers seeking puristic design combined with a distinct note of luxury. The watch is available in four red-gold and six stainless-steel versions. The flawless precious stones give these watches a radiance of their own, while the design itself remains sleek and simple. The fine sun-pattern finish on the dials reflects light in a myriad of different ways, while the polished surfaces of the case, like the guilloche work, give the watches an opulent style of their own. Alligator leather straps from Santoni in delicate nuances of colour, from light and dark brown to grey and black, as well as in orange, lilac and red, complement the dial and case of nine of the models perfectly, while one of the stainless-steel models is fitted with an exquisite Milanaise mesh bracelet. Each timepiece is also available with a Milanaise mesh bracelet in stainless steel or 18-carat red gold. Reference: IW458109

Brand: IWC
Family: Portofino
Reference: IW4581-09 (aka: 4581-09, IW458109)
Name: Portofino Automatic 37 Diamond Bezel / Red Strap
Produced: N/A
Limited: No

Below is a detailed look at IWC’s model IW4581-09 from Portofino watch family, including the price, case details and movement features.

IWC Portofino IW4581-09

The Details

IWC’s Portofino Automatic 37 Diamond Bezel / Red Strap (IW4581-09 (aka: 4581-09, IW458109)) was originally released in N/A. This watch features a automatic movement beating at a frequency of 28800 bph (4 Hz) to provide a 42-hour power reserve when fully wound.

The Case

The stainless steel case measures 37mm in diameter and roughly 9mm thick. The round case is paired with a silver color dial with feuille-shaped hands, and a diamond hour markers and minute track, covered by a sapphire glass. IWC’s Portofino model IW4581-09 is water resistant up to 30 meters (98 ft). A solid caseback is over the back of the watch case.

Material: Stainless steel
Glass: Sapphire
Back: Solid
Shape: Round
Diameter: 37mm
Height: 9mm
Lug Width: N/Amm
W/R: 30

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Portofino IW4581-09 movement is a powered by caliber 35111 made by IWC. The 25-jewel automatic movement is 25.6mm in diameter. Its balance wheel oscillates at 28800 semi-oscillations per hour or 4 Hz. This movement offers a 42-hour power reserve.

Type: Automatic
Brand: IWC
Caliber: 35111
Base: Sellita SW300-1
Display: Analog
Diameter: 25.6mm
Jewels: 25
Reserve: 42 hours
Frequency: 28800 bph
Time: Hours, Minutes, Seconds
Chronograph:
Additionals:

The Price

How much does the IWC’s Portofino IW4581-09 cost? This watch was introduced in N/A and has been in IWC’s collection for around . This watch is not a limited release. As with most luxury watches, the price of depends on the availability and demand.

CURRENT PRICE: 10300

For more information, visit IWC online.

Specifications:

  • Brand: IWC
  • Model: Portofino Automatic 37 Diamond Bezel / Red Strap
  • Reference Number: IW4581-09 (aka: 4581-09, IW458109)
  • Limited: No

Case & Dial:

  • Material: Stainless steel
  • Glass: Sapphire
  • Back: Solid
  • Diameter: 37
  • Thickness: 9
  • Lug Width: N/A
  • Dial Color: Silver
  • Indexes: Diamond and Feuille-shaped hands
  • Water Resistance: 30 meters

Movement:

  • Winding: Automatic
  • Brand: IWC
  • Caliber: 35111
  • Display: Analog
  • Diameter: 25.6mm
  • Jewels: 25
  • Power Reserve: 42 hours
  • Frequency: 28800 bph
  • Functions: Hours, Minutes, Seconds

About IWC

IWC logo

IWC is based in Schaffhausen, Switzerland, and was founded in 1868. Its signature lines are the Pilot’s Watches and the Portugieser, while other famous collections are the Aquatimer, Portofino and the Da Vinci. Many of IWC’s designs display a industrial type of beauty not often found in Swiss watchmaking. The same goes for its movements; while of very high standards, they are finished with an … engineers touch rather than that of an artist. One could very well say that IWC’s approach to watchmaking is more German in nature compared to many of its competitors; the ‘form follows function’ adagio is one held in high esteem in Schaffhausen. Notable watches and innovations created by IWC in the past include the digital ‘Pallweber’ pocket watch, the late 1930’s Portugieser, the 1985 Da Vinci with Kurt Klaus perpetual module, the split-seconds mechanism as designed by Richard Habring and the ceramic Da Vinci and Flieger 3705 – introduced many years before the material became fashionable. IWC also pioneered the use of titanium in wristwatches. In recent years, IWC has had a strong focus on in-house movements with prices rising accordingly. IWC is part of the Richemont group.

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