Case material: Platinum; Charge: Manual; Conditions: New Presentation condition : With boxes and all papers; Price on request Gmtbroker Reference: 730.025 A. Lange & Sohne 730.025 Complete Details: LIMITED & NUMBERED EDITION OF 100 PIECES ONLY! Polished platinum case with fine satin finished case band (edge). Solid silver dial. Black printed Arabic Numeral hour markers. Fine black printed minute track. Blued steel hands. Tourbillon: 60 seconds tourbillon located at the top of the 6 o'clock position, with a blued steel hand fixed to the tourbillon doubling as a seconds hand. Stop-Seconds: Introduced by Lange in 2008, Lange has developed a way to stop the tourbillon when the crown is pulled out, so that the watch can be set to a precise second. This patented feature is accomplished with a V-shaped arresting spring that can stop the balance wheel inside the rotating tourbillon cage when the crown is pulled. Zero-Reset Seconds: When the crown is pulled the seconds hand stops (Stop-Seconds patent) & jumps to zero (Zero-Seconds patent), allowing the watch to be set accurately to the second. A. Lange & Sohne Caliber L102.1, beats at 21,600 vph, composed out of 262 parts, contains 20 Jewels & has an approximate power reserve of 72 hours. Movement 3/4 back plate is finely finished with striped/ribbed finish and polished beveled edges. The balance-cock is hand engraved making each watch unique. Featured Complications: Tourbillon This watch is also known as 730025