The IWC Portugieser F.A. Jones Limited Edition (Reference IW544203) is a highly collectible tribute watch released in 2005 to honor Florentine Ariosto Jones, the American watchmaker who founded the International Watch Company in 1868.

• The "Jones Calibre": The Calibre 98290 movement pays explicit homage to 19th-century pocket watches. Visible through the case back, it features an elongated "Jones arrow" index regulator extending from the balance cock to the 3/4 plate to allow precise beat adjustment.

• Strictly Limited & Numbered: IWC produced exactly 3,000 pieces in stainless steel globally. Unlike standard modern limited editions that state "1 of 3000," each piece in this series features its unique individual number custom-engraved directly onto the side of the case.

• Case Material: Polished and brushed stainless steel

• Case Diameter: 43 mm

• Case Thickness: Slim 11.1 mm to 11.7 mm profile

• Dial: Lacquered glossy white dial featuring blue Arabic numerals and the original F.A. Jones script signature at the 12 o'clock position.

• Hands: Elegant, thermally blued steel Breguet-style hands.

• Sub-dial: Oversized small seconds sub-dial located at 6 o’clock.

• Movement: In-house Calibre 98290 manual-winding movement (operating at 18,000 vph / 2.5Hz).

• Power Reserve: Approximately 46 hours.

• Water Resistance: Rated up to 30 meters (3 ATM).

• Exhibition Back: A sapphire crystal display back showcases the movement's architectural heritage.