The Hong Kong Watch Auction: ONE | Page 468

315. Patek Philippe An extremely rare and historically important stainless steel openface watch with one minute tourbillon regulator awarded the first prize at the Geneva Astronomical Observatory for the timing contest on February 3, 1931 with two tone sector dial, additional yellow gold case, dial, hands and fitted presentation box 百達翡麗,極罕有及非常重要,不銹鋼天文台陀飛輪懷錶,雙色 錶盤,附黃金錶殼和琺瑯錶盤、指針、錶盒,1924年製 HK WATCHES_NOV15_420-575_bl_CS5.indd 466 Manufacturer Year Patek Philippe 1924 Movement No. Case No. Material Calibre Dimensions 198’381 416’638 Stainless steel TO 22’’’, 16 jewels 57 mm. diameter steel case, 60 mm. diameter gold case Case, dial and movement signed Signed Estimate HKD 3,900,000-8,000,000 USD503,000-1,030,000 Accessories With Patek Philippe additional gold case, enamel dial, hands, fitted Patek Philippe presentation box. With Patek Philippe Extract from the Archives confirming the production of the present openface watch with one minute tourbillon regulator in 1924 and its subsequent sale on October 22nd, 1935. Literature This watch is prominently featured in Patek Philippe Steel Watches by John Goldberger, page 22 and 23. For the only other known stainless steel openface watch with tourbillon that is in the Patek Philippe Museum in Geneva, please see Exposition de la fabuleuse collection privée de Patek Philippe , 100 fig. 487. 22/10/15 11:37