• 手動上弦鍍黑機芯GF02，43顆寶石嵌於黃金套筒內，單一金屬補償擺輪在雙體陀飛輪內旋轉，內框陀飛輪每一分鐘旋轉一圈，外框陀飛輪每四分鐘旋轉一圈，內陀飛輪相對傾斜30度 • 藍寶石水晶錶盤透視機芯，9時位置設小秒盤，3時位置顯示動力儲存 • 鍍黑鈦金屬錶殼，錶側銘刻浮雕字"Message from the Inventor Watchmakers" ，藍寶石水晶背透蓋由6顆螺絲固定 • 錶殼、錶盤及機芯印有品牌標誌 • 備Greubel Forsey 鍍黑鈦金屬雙摺疊錶扣
* 拍品資料以英文圖錄為準。

Movement running at the time of cataloging however it was not tested for accuracy of time and may benefit from a service at the buyer's expense. Case in very good condition with extremely minor wear. Dial and movement in excellent condition. Please note the present lot is accompanied by the numbered Owner's Book.
"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."

Robert Greubel and Stephen Forsey launched their very high-end company based in La Chaux-de-Fonds, Switzerland in 2004 and stunned horological aficionados with their innovative timepieces which clearly demonstrate their twin goals of invention and excellence.

The following three lots are an innovative interpretation of Greubel Forsey's renowned Double Tourbillon 30°. An inner tourbillon inclined at a 30° angle completes 1 rotation per minut💎e. An outer tourbillon completes 1 rotation in 4 minutes. Of the 385 piecesꦿ within the movement, 132 are devoted to the tourbillon. The 120-hour power reserve is guaranteed by four fast rotating co-axial barrels, one of which is equipped with a slipping spring to avoid excess tension. These highly technical elements ensure absolute precision and efficiency.

Furthermore, the Douꦏble Tourbillon Technique won the 1st price in the tourbillon category of thᩚᩚᩚᩚᩚᩚ⁤⁤⁤⁤ᩚ⁤⁤⁤⁤ᩚ⁤⁤⁤⁤ᩚ𒀱ᩚᩚᩚe Concours International de Chronométrie 2011 (International Chronometry Competition) with 915 points out of a maximum of 1000. The contest consists of a 15 day test in various positions and temperatures to award the most precise watch.