TB88

• Case: 18-karat rose gold
• Size: 46mm
• Movement: hand-wound manufacture caliber A&S5003
• Function: dead-beat seconds
• Power Reserve: approximately 100 hours
• Water Resistance: 30m
• Dial: openworked, palladium-treated bridges
• Caseback: sapphire crystal
• Strap/Bracelet: alligator leather

The TB88's hand-wound movement unites all the technical and aesthetic characteristics of a classical Arnold chronometer. The letters "'TB" stand for true beat, a complication that permits the precision timekeeping required for navigation at sea. Unlike a conventional mechanical escapement, a true beat escapement has an unusual single-pallet design that measures out time in complete one-second steps rather than the fractions determined by the balance frequency.