朗格，罕有及吸引，鉑金腕錶，配飛返計時功能及特大日曆顯示，DATOGRAPH FLYBACK，型號403.035，附原廠證書、後補證書、盒子及外包裝

The Datograph has always maintained a cult following, making it one of the ‘must have’ watches for a serious collector. One of the significant landmarks of modern watchmaking, the sheer quality of finishing of the Datograph has solicited accolades from some of the world’s greatest watchmakers, many of whom consider the model to be the among the finest serially produced wristwatch ever made.

The Datograph Flyback was introduced to great acclaim at the 1999 Basel Fair (Baselworld) as the world's first chronograph based on the classic column-wheel principle with precisely jumping minute counter and patented oversized date. It times events with a duration of up to 30 minutes with an accuracy of one-fifth of a second. The precisely jumping minute counter allows ease of reading of the recorded time. The flyback function allows the chronograph to be instantaneously reset to zero during an ongoing measurement by simply pressing the chronograph button. As soon as it is released, a new timing cycle begins, hence eliminating the need to stop a measurement and reset the stop hand before starting a new timing. The patented oversized date in the twin gold-framed window ensures excellent legibility.

The movement design was inspired by that of a pocket watch, it consists of 405 parts, the plates and bridges are made of untreated German silver and finished with circular graining and Glashütte ribbing. The balance bridge is manually engraved with a master's personal free-hand technique, making each Datograph a one-of-a-kind watch.