A. LANGE & SÖHNE DATOGRAPH FLYBACK, REF.403.035, A PLATINUM CHRONOGRAPH WRISTWATCH WITH DATE, CIRCA 2019A. LANGE & SÖHNE | DATOGRAPH FLYBACK, REF.403.035, A PLATINUM CHRONOGRAPH WRISTWATCH WITH DATE, CIRCA 2019Case No: 176798Calibre: L 951.1, automatic, signedDial: Black, signedCase: 39mm, platinum, transparent case back, signedStrap: Maker's endangered species, platinum buckle, signedAccompaniments: Maker's presentation box, certificate, service receipt, instruction manual and spare associated strap朗格，「Datograph Flyback」403.035型號，鉑金自動上弦飛返計時腕錶，配雙格大型日期顯示，年份約2019。附原廠錶盒、證書、服務憑證、操作說明及備用鱷魚皮錶帶。The reference 403.035 is a combination of "Haute Horlogerie" and pure beauty. It is the first chronograph in the world that features a patented oversized date, a flyback and a precise jump counter. The flyback function allows an ongoing time measurement to be stopped and a new one to be started instantaneously by simply pressing a button, simplifying the common 3 steps - stop, reset to zero, and restart into one. The present example features a platinum case and a black dial with Roman numerals 2,6 and 10. Turning the watch over, the in-house calibre L951.1 is displayed through the transparent case back, revealing the technical beauty of the watch.