from the listing:
Est. £150,000 - £180,000
An extremely rare 1926 Patek Philippe 18k tonneau gents dress watch with 'mis-spelt' (original factory error) dial, 32mm case, cream gilt dial with subsidiary second dial, blue gun metal hands and Arabic numerals, signed 'PATEK PHLIPPE & CO', movement no 810483, case no 290595, Patek leather strap, on 18ct gold Patek Philippe pin buckle, in perfect working order. This is an extremely rare watch, it comes with Sotheby's horology catalogue of 17th December 2002. Also a letter of provenance from Alexander Barter who was the head authenticator for watches worldwide at Sotheby's at the time of sale. With Patek Philippe box and Archive Papers.