CASE: Two-body, polished, screw-down transparent case back, protected winding crown, push button on the band at 10 to activate the settable discs with the different time zones, the 24 hours and jump-type time-setting, concave lugs, sapphire crystals.DIAL: Guilloche silver with applied black baton indexes, surrounded by a brushed silver and black revolving disc in 24 hours for the diurnal and nocturnal hours, outer revolving brushed silver ring dial bearing the names of 24 global locations. Black oxidized gold dauphine and ring hands.MOVEMENT: Cal. 240, stamped with the Seal of Geneva quality mark, rhodium-plated, fausses cotes decoration, 33 jewels, straight-line lever escapement, Gyromax balance adjusted to heat, cold, isochronism and five positions, shock absorber, self compensating free-sprung flat balance spring, 22K gold micro-rotor. Dial, case and movement signed, in very good conditionDIAM. 39.5 mm. THICKNESS 10 mm.NOTE: The reference 5130 was launched in 2007 to update reference 5110, which had been introduced in 2000. The main difference is that the size of the case of the new model is 39.5 mm (instead of 37 mm for the 5110)NOTE: