百達翡麗，罕有，18K白金自動上弦天文腕錶，配星空圖表、月相及月亮軌跡顯示、天狼星及月亮中天，CELESTIAL，型號5102G，約2005年製，附原廠證書、盒子及外包裝百達翡麗，罕有，18K白金自動上弦天文腕錶，配星空圖表、月相及月亮軌跡顯示、天狼星及月亮中天，CELESTIAL，型號5102G，約2005年製，附原廠證書、盒子及外包裝機芯: 自動上弦錶盤: 皇家藍色日輝紋錶徑: 43毫米 附件: 百達翡麗18K 白金針扣， 百達翡麗原廠證書、吊牌、產品資料、大皮夾、盒子及外包裝備注：品相全新 , 此拍品是初次在拍場上亮相。百達翡麗Details PATEK PHILIPPE. A RARE 18K WHITE GOLD AUTOMATIC ASTRONOMICAL WRISTWATCH WITH SKY CHART, PHASES AND ORBIT OF THE MOON INCLUDING TIME OF MERIDIAN PASSAGE OF SIRIUS AND OF THE MOONCELESTIAL MODEL, REF. 5102G, CIRCA 2005Movement: Automatic Dial: Blue sky chart Case: 43 mm.With: 18k white gold Patek Philippe buckle, Patek Philippe Certificate of Origin, sales tag, product literature, leather portfolio, presentation box and outer packaging Remark: In unworn condition, fresh to the market Special notice Lot incorporates material from endangered species that is not for sale and is shown for display purposes only. The endangered species strap shown with the Lot is for display purposes only and is not for sale.Upon sale, the watch will not be supplied to a buyer outside Hong Kong with any watch strap.品相: Reference 5102 Launched in 2002, the ‘Celestial’ is one of the most important horological complications ever developed. This astronomical wristwatch borrows the principle of the celestial canopy from the most complicated wristwatch ever produced by Patek Philippe - reference 5002, the Sky Moon Tourbillon. The nocturnal sky of the northern hemisphere rotates to show the apparent angular motion of the stars and moon as well as the progression of the phases of the moon. Hours and minutes are displayed by two pierced white hands. A delicate elliptical contour on the inside of the glass frames the portion of the sky visible from all cities sharing the latitude of Geneva. To determine the highest possible accurateness for the astronomical displays, the engineers of Patek Philippe researched 25 trillion (25,000,000,000,000) ratio combinations, showing the enormous horological challenge the model represents. The highly sophisticated automatic movement calibre 240 LU CL consists of 301 individual parts, meticulously hand-finished in the workshops of Patek Philippe. Three sapphire crystal discs are used to simulate the orbit of the moon and the passage of the stars, hence rendering it a remarkable sense of depth. For the mechanical module for the astronomical displays the firm was granted Swiss Patent CH 688 171 B5.