IWC Portuguese Automatic White Gold IW5001-06

The IW5001 belongs to the original Portugieser Automatic that began with the reference 5000 in 2000. That watch introduced IWC's in-house calibre 5000, wound by a Pellaton system and built for a seven-day power reserve, shown at 3 o'clock opposite the small seconds at 9. The calibre became the 50010 in 2004 and the 51010 in 2005. The case is 13.9 mm thick and takes a 22 mm strap. Applied Arabic numerals and leaf-shaped feuille hands sit under a sapphire crystal.

The rose gold IW5001-01 and the platinum IW5001-04, limited to 500 pieces, have silver dials, and the steel IW5001-07 and IW5001-09 come in silver and black. The Tourneau edition IW5001-17 has the same white gold case and grey dial in a run of 10. The later Automatic 5007 keeps the 42.3 mm diameter but is 14.5 mm thick, with the twin-barrel calibre 52010; the red gold IW5007-02 has the Ardoise dial.