Brand new A. Lange & Son Langmatik, Model # 310.025. Platinum 38.5 mm case. Crocodile leather strap with platinum buckle. Rhodium dial. Automatic movement, Lange Calibre L921.1 (21,600vph, 43 jewels). 38 hour power reserve. Hours, minutes and seconds sub-dial located at the bottom of the dial. In addition, this watch has a Zero Reset seconds hand, which resets the seconds hand to zero when you pull out the crown to adjust the time; this makes it extremely easy to synchronize the watch to perfection. AM/PM Indicator, Date, Day, Leap Year, Month, Sub-Seconds, Moonphase. Perpetual calendar

　　watch will correctly adjust for short and long months as well as 28/29 days of February once every 4 years.

　　subject to availab