Name: Portuguese 'Jubilee'
Reference: IW5441-01 (steel / brown strap) and IW5441-02 (steel / black strap)
Case material: steel
Movement: 9828
Power reserve: 46 hours
Jewels: 19
Dial color: white
Strap: glossy brown alligator / steel pin buckle, depicted on non-original IWC replacement strap
Additional info: limited edition of 1000 watches in steel for IWC's 125th anniversay in 1993 (also available in gold (500 pcs.) and platinum (250 pcs.)). Overview of all Portuguese Limited editions (courtesy Greg Steer):
www.gregsteer.net/IWC/Portuguese_LE/Portuguese_LE.htm