百達翡麗（Patek Philippe）

• 自動上弦擒縱機芯240/165，印有日內瓦印記，45顆寶石 • 外圈藍寶石水晶錶盤配銀面橢圓外框顯示星圖及基本四個方位，藍色時標圈配銀面羅馬數字，圓點分鐘刻度，藍寶石錶盤飾手繪金色星星，按天體大小比例繪製，灑金粉代表銀河，下層旋轉藍色錶盤設視窗顯示月相 • 18K白金錶殼，錶側精雕百達翡麗Calatrava十字星，2時位置設上弦錶冠調校時間，4時位置錶冠可調整星圖及月相，旋入式藍寶石水晶背透蓋 • 錶殼、藍寶石水晶錶盤和機芯印有品牌標誌 • 備百達翡麗18K白金摺疊式錶扣
* 拍品資料以英文圖錄為準。

The movement is running at time of cataloguing.The dial and hands are in excellent condition. The case has very minor surface scratches as it appears that the watch was rarely used. Overall, the watch is in excellent condition.The watch has not been tested to determine the accuracy of its timekeeping. Please note that Sotheby's does not guarantee the future working of the movement and that a service may be required at the buyer's discretion.***Please be advised that the bands on this watch are made of materials derived from endangered or otherwise protected species (i.e. alligator and crocodile) and thus not sold with the watch, they are for display purposes only. We will remove these bands prior to shipping.***
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. All dimensions in catalogue descriptions are approximate. Condition reports may not specify mechanical replacements or imperfections to the movement, case, dial, pendulum, separate base(s) or dome. Watches in water-resistant cases have been opened to examine movements but no warranties are made that the watches are currently water-resistant. Please note that we do not guarantee the authenticity of any individual component parts, such as wheels, hands, crowns, crystals, screws, bracelets and leather bands, since subsequent repairs and restoration work may have resulted in the replacement of original parts. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue. In particular, please note it is the purchaser's responsibility to comply with any applicable import and export matters, particularly in relation to lots incorporating materials from endangered species.NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

**Please be advised that bands made of materials derived from endangered or otherwise protected species (i.e. alligator and crocodile) are not sold with the watches and are for display purposes only. We reserve the right to remove these bands prior to shipping."

Launched in 2002, the Celestial (Ref. 5102) is one of the most important horological complications ever developed. Its introduction allowed the remarkable rendition of the Northern Hemisphere's celestial chart to be fitted dynamically upon the wrist for the first time. 

The celestial chart rotates counter clockwise, showing the progression of stars relative to the meridian passage of Sirius. Simultaneously, the meridian passage and phases of the moon can be seen. 25 trillion (25,000,000,000,000) ratio combinations were researched by Patek Philippe to determine the greatest accuracy for all the Ref. 5102's displays. This gives some sense of the tremendous challenges that the production of this highly complicated model posed to the company's watchmakers.

Using a highly sophisticated automatic calibre 240 LU CL, the movement uses 301 individual parts that are meticulously hand finished in the workshops of Patek Philippe. Three corundum sapphire crystal discs are used to simulate the orbit of the moon and the passage of the stars, creating an incredible sense of depth. For this important invention, Patek Philippe was awarded a Swiss Patent for the base calibre (CH 688 171 B5).