Case material: White gold; Charge: Manual; Conditions: New Presentation condition : With boxes and all papers; Model: 1815 Price on request Gmtbroker Reference: 402.026 A. Lange & Sohne 402.026 Complete Details: This watch features:   Polished finished case with fine brushed finished edges. Silvered color solid silver dial. Painted black Arabic numeral hour markers & minute track. Blued hands. Chronograph movement with Flyback function - allowing the stop-watch to be instantaneously restarted for continuous timing, without having to stop, reset and then restart the chronograph. Large central blued seconds hand counter. 30 minute counter sub-dial at the right side of the dial. Furthermore the minute hand of the chronograph jumps in 1 minute increments rather than continuously moving - this allows for accurate reading of the timing function. Small running seconds sub-dial to the left of the dial. Stop seconds - when the crown is pulled out the seconds hand stops in its tracks allowing to set the time to the second. A. Lange & Sohne Caliber L951.5, beats at 18,000 vph, contains 34 Jewels & has an approximate power reserve of 60 hours. Each component of the movement has been meticulously finished with fine polished beveled edges & a hand-engraved balance cock. Featured Complications: Chronograph This watch is also known as 402026