Girard-Perregaux, a very fine and rare gold and diamond rectangular three bridges Tourbillon watch, ref 9987,18ct rose gold, vintage 1945 collection, case pave set set with fine round brilliant cut diamonds, factory set, automatic tourbillion movement, signed on dial 'Number 1 and 9600C', back case signed 'Girard Perregaux', on a chestnut brown leather strap, with original Girard-Perregaux 18ct rose gold deployant fold over buckle, excellent condition, includes original invoice, booklets and service history, case 32 mm