DE BETHUNE，18K白金萬年曆腕錶，配3D旋轉月相及閏年顯示，DB15WT，約2006年製，附原廠證書及盒子DE BETHUNE，18K白金萬年曆腕錶，配3D旋轉月相及閏年顯示，DB15WT，約2006年製，附原廠證書及盒子機芯： 手動上弦錶盤：銀色錶徑： 43毫米附件： 18K白金DE BETHUNE錶扣、原廠證書、調校針及盒子備註：共45枚已製附註：拍品序列號可按要求提供De BethuneDetails DE BETHUNE. A RARE 18K WHITE GOLD PERPETUAL CALENDAR WRISTWATCH WITH THREE-DIMENSIONAL REVOLVING MOON PHASES AND LEAP YEAR INDICATION DB15WT, CIRCA 2006Movement: Manual Dial: Silvered Case: 43 mm. With: 18k white gold De Bethune buckle, De Bethune Certificate of Authenticity, setting pin and presentation box Remark: 45 pieces madeNote: Serial numbers are available upon request品相: De Bethune's DB15 Perpetual Calendar Revolving Moon model contains several innovations never seen before in the field of fine watchmaking. Its movement by the way incorporates a variety of patents. Both from a technical and aesthetic point of view, one of the most interesting aspects is the highly unusual indication of the phases of the moon, a sphere emerging from a subsidiary dial and rotating on its own axis. This allows showing the varying movements of this star in a very realistic manner, the representation of what can be observed in reality. Moreover the driving mechanism of the sphere is calculated so precisely that it will take over 120 years before it shifts. The entirely factory-made perpetual calendar mechanism provides the additional feature of a rapid date change via the winding crown, the leap years are indicated by the eclipse of a star represented on the moon.