A new platinum version joins the white and rose gold models of the famous, exceptionally convenient World Time watch. The timeless classic design of the case has been kept and adapted in a larger more contemporary size with a diameter of 39,5 mm (formerly 37). The dial is inspired from the original World Time watch with a new guilloché pattern for the centre. The slightly enlarged size gives a better reading comfort for the 24 time zones. The unique ring-shaped hour hand is inspired from historical Patek Philippe World Time watches from the 1930-1940's. This new World Time watch replaces the original Ref. 5110 first introduced in year 2000. Indication of 24 time zones Guilloched silvery sunburst dial, gold hour markers Strap: alligator with large rectangular scales, hand-stitched, matt navy blue (white gold) or matt dark brown (rose gold) Fold-over clasp Sapphire crystal case back Water resistant to 25 m White or rose gold Case diameter: 39.5 mm