IWC. A very fine and rare limited edition platinum automatic perpetual calendar minute repeating chronograph wristwatch with phases of the moon Signed IWC, Schaffhausen, model 'Grande Complication', no. 02/50, case no. 2555002, 1994
Estimate: $70,000-100,000 (AED260,000-370,000)

Vacheron Constantin. A superb 18k white gold openface keyless lever tourbillon pocket watch. Signed Vacheron Constantin, Geneve, case no. 92244 614924, circa 1995
Estimate: $50,000-80,000 (AED190,000-290,000)

Cartier. A very rare limited edition platinum tonneau-shaped double retrograde tourbillon wristwatch. Signed Cartier, Paris, Private Collection, model 'Tortue XL Tourbillon', no. 10/25, case no. 2808, circa 2006
Estimate: $50,000-80,000 (AED190,000-290,000)

Christie's Dubai : Contemporary Jewels & Watches - 1 November 2007, 6:30 pm - Godolphin Ballroom, Jumeirah - Emirates Towers Hotel, Dubai - www.christies.com