The Basics

IWC Vintage Portofino 1984 Referention: IW544801 Power reserve: 46 h With its narrow Roman numerals and moon phase display, the Portofino Hand-Wound exudes the same timeless elegance as the original 24 years ago, and has made use of its renaissance to correct a “flaw” – albeit a rather becoming one: the choice of the 98800-calibre hunter movement means that the moon phase and seconds displays are now back at their conventional positions of 12 and 6’clock, respectively. The movement, which is based on the Jones calibre and features a nickel-plated nickel-silver threequarter plate, screw balance, Breguet spring and elongated index, has also undergone a modification: the accuracy of the moon phase display has been improved to the extent that it deviates by just one day in 122 years from the actual progress of the moon. In addition, the moon phase can easily be corrected using just the crown. The imposing 46-millimetre case remains unchanged.

Brand: IWC
Family: Vintage Collection
Reference: IW5448-01 (aka: 5448-01, IW544801)
Name: Vintage Portofino 1984 Stainless Steel
Produced: 2008 – 2012
Limited: No

Below is a detailed look at IWC’s model IW5448-01 from Vintage Collection watch family, including the price, case details and movement features.

IWC Vintage Collection IW5448-01

The Details

IWC’s Vintage Portofino 1984 Stainless Steel (IW5448-01 (aka: 5448-01, IW544801)) was originally released in 2008 – 2012. This watch features a hand-wound movement beating at a frequency of 18000 bph ( 3 Hz) to provide a 46-hour power reserve when fully wound.

The Case

The stainless steel case measures 46mm in diameter and roughly 11mm thick, with 22mm lug width. The round case is paired with a black color dial with breguet-shaped hands, and a roman numerals hour markers and minute track, covered by a sapphire glass. IWC’s Vintage Collection model IW5448-01 is water resistant up to 30 meters (98 ft). A display caseback is over the back of the watch case.

Material: Stainless steel
Glass: Sapphire
Back: Display
Shape: Round
Diameter: 46mm
Height: 11mm
Lug Width: 22mm
W/R: 30

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Vintage Collection IW5448-01 movement is a powered by caliber 98800 made by IWC. The 18-jewel hand-wound movement is 37.8mm in diameter. Its balance wheel oscillates at 18,000 semi-oscillations per hour or 3 Hz. This movement offers a 46-hour power reserve.

Type: Hand-Wound
Brand: IWC
Caliber: 98800
Base: N/A
Display: Analog
Diameter: 37.8mm
Jewels: 18
Reserve: 46 hours
Frequency: 18000 bph
Time: Hours, Minutes, Small Seconds

The Price

How much does the IWC’s Vintage Collection IW5448-01 cost? This watch was introduced in 2008 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.


For more information, visit IWC online.


  • Brand: IWC
  • Model: Vintage Portofino 1984 Stainless Steel
  • Reference Number: IW5448-01 (aka: 5448-01, IW544801)
  • Limited: No

Case & Dial:

  • Material: Stainless steel
  • Glass: Sapphire
  • Back: Display
  • Diameter: 46
  • Thickness: 11
  • Lug Width: 22
  • Dial Color: Black
  • Indexes: Roman Numerals and Breguet-shaped hands
  • Water Resistance: 30 meters


  • Winding: Hand-Wound
  • Brand: IWC
  • Caliber: 98800
  • Display: Analog
  • Diameter: 37.8mm
  • Jewels: 18
  • Power Reserve: 46 hours
  • Frequency: 18000 bph
  • Functions: Hours, Minutes, Small 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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