朗格，極罕有，鉑金鑲長形鑽石飛返計時腕錶，配日曆顯示及動力儲存，為慶祝日本HOUR GLASS 20週年而製，DATOGRAPH UP/DOWN，型號405.836，約2021年 製，附原廠證書朗格，極罕有，鉑金鑲長形鑽石飛返計時腕錶，配日曆顯示及動力儲存，為慶祝日本HOUR GLASS 20週年而製，DATOGRAPH UP/DOWN，型號405.836，約2021年製，附原廠證書機芯：手動上弦錶盤：黑色錶徑：41毫米附件：鉑金朗格錶扣、朗格原廠證書、調校針及產品資料備註：僅有兩套，品相全新，本套裝首次於拍場出現附註：拍品序列號可按要求提供朗格Details A. LANGE & SÖHNE. AN EXCEPTIONALLY RARE PLATINUM AND BAGUETTE-CUT DIAMOND-SET FLYBACK CHRONOGRAPH WRISTWATCH WITH DATE AND POWER RESERVE, MADE TO COMMEMORATE THE 20TH ANNIVERSARY OF THE HOUR GLASS JAPAN DATOGRAPH UP/DOWN MODEL, REF. 405.836, CIRCA 2021Movement: Manual Dial: Black Case: 41 mm.With: Platinum A. Lange & Söhne buckle, Lange Guarantee Seal, A. Lange & Söhne Certificate, setting pin and product literatureRemark: Only 2 sets made, in unworn condition, first time to appear at auctionNote: Serial numbers are available upon request品相: The Hourglass Japan 20th Anniversary SetNever before seen at auction, Christie’s is very proud to present for the first time, this exceptional and important set of three baguette diamond-set platinum Lange & Söhne wristwatches produced exclusively as a special edition for the 20th Anniversary of the Japan boutiques of the highly prestigious retailer ‘Hourglass’ which was founded in 1996.Only available to buy in the full set of three and offered to hand-picked VIP clients of Hourglass, each watch is a very special example of one of Lange & Söhne’s iconic and most revered models. Further underlining the importance of the edition, each model made for the set was given its own new reference number to distinguish it as a special series, standing apart from regular production watches.As a set of three, these timepieces are breathtaking, individually they are arguably the most attractive specimens of each model, the black dials, platinum cases and baguette diamonds combining to visual perfection. The present set is accompanied by a Certificate for each watch for Hourglass Japan 20th Anniversary signed by Wilhelm Schmid, Chief Executive Officer of Lange & Söhne.The three models are as follows:Reference 405.836 Datograph Up/Down – platinum, set with 36 Top Wesselton, IF-VVS quality baguette cut diamonds on the bezel weighing a total of 4.5 carats. Movement Lange caliber 951.6. Reference 310.836 Langematik Perpetual - platinum, set with 36 Top Wesselton, IF-VVS quality baguette cut diamonds on the bezel weighing a total of 3.1 carats. Movement Lange caliber 922.1. Reference 320.836 Lange 1 Daymatic - platinum, set with 36 Top Wesselton, IF-VVS quality baguette cut diamonds on the bezel weighing a total of 2.5 carats. Movement Lange caliber 021.1. The Datograph Up/Down Launched at SIHH 2012, it replaced the legendary Datograph Flyback which had been in production since 1999. The Datograph Up/Down features a larger case of 41 millimetres diameter as opposed to the 39 millimetre of its predecessor. The name ‘Up/Down’ refers to the indicator for the 60-hour power reserve at 6 o'clock. The original Datograph had a power reserve of 36 hours, the Up/Down version has an impressive 60-hour reserve. The Datograph has always maintained a cult following as one of the must-have watches for a serious collector. A major landmark of contemporary watchmaking, the incredible standard of finishing of the Datograph has established it as one of the finest serially produced wristwatches ever made. The Langematik Perpetual The world's first automatic wristwatch featuring a perpetual calendar, an oversized date and the patented zero reset mechanism allowing the calendar displays as well as the moon phase indication to be advanced either individually or collectively by depressing the calendar change button in the band. Once correctly set, the date display remains accurate until the next secular year occurs. The moon phase mechanism is also stunningly accurate: after 122.6 years of uninterrupted operation, it deviates from synodic lunation by merely one day. Lange's patented ‘zero-reset’ mechanism simplifies the synchronization of the watch with a time signal. When the crown is pulled out, it automatically causes the seconds hand to jump to the 12 o'clock or ‘zero’ position.The Lange 1 Daymatic The first model in the Lange 1 family to have an automatic movement. Its design mirrors that of the original Lange 1, but instead of a retrograde power reserve, the Daymatic features the days of the week. Carefully placed to follow the rule of the golden ratio, the indications on this watch are both easy to read and pleasing to the eye.