PATEK PHILIPPE. AN 18K GOLD AND STAINLESS STEEL AUTOMATIC CALENDAR BRACELET WATCH Model: Nautilus 'Jumbo' Reference: 3700/1 Date: c. 1980s Movement: Cal. 28-255 C, 36-jewel automatic, Geneva Seal, no. 1'309'219 Dial: Ribbed blue Case: Two part case secured by four screws, no. 541'658 Strap/Bracelet: Integral 18k gold and stainless steel link Buckle/Clasp: Stainless steel folding clasp Signed: Case, dial, movement and clasp Size: 42mm Accompaniments: None Footnotes: Originally designed by Gérald Genta and introduced in 1976, the Patek Philippe Nautilus drew inspiration from the portholes of transatlantic ocean liners. Its distinctive rounded-octagonal bezel and innovative case construction evoke the appearance of a ship's window secured against the sea. The present Reference 3700/1 is an early example of the 18k yellow gold 'Jumbo' Nautilus, distinguished by its generous 42mm case and signature monobloc construction. Powering the watch is the automatic Caliber 28-255 C, featuring an 18k gold rotor and a power reserve of approximately 48 hours. As the inaugural Nautilus reference and the model that established one of watchmaking's most enduring design icons, the Reference 3700 remains among the most coveted vintage sports watches ever produced. Early two tone examples such as the present watch are particularly prized by collectors for their rarity and historical significance. For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing