Case material: White gold; Charge: Manual; Conditions: New Presentation condition : With dealer guarantee ; Model: 1815 Price on request Gmtbroker Reference: 402.026 - Polished finished case with fine brushed finished edges. - Silvered color solid silver dial. - Painted black Arabic numeral hour markers & minute track. - Blued hands. - 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. Chronograph: - 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. Also known as: A.Lange & Sohne 402.026, Lange 402.026, A. Lange & Sohne 402.026, Lange and Sohne 402.026, 402026