A. Lange & Sohne LangeMatik Perpetual 304.025FE. Platinum 38.5mm case. Automatic L922.1 calibre movement. Water resistant to 30 metres. 46 hour power reserve. Silver dial with Roman hour markers and blue lance hands. Hours, minutes and subsidiary seconds dial; patented ZERO-RESET mechanism; perpetual calendar with outsize-date, day-of-week, month and leap-year display; moon-phase display; day/night indicator. Power Reserve indicator. Sapphire glass back with 43 jewels. Blue croc strap with platinum Lange buckle. Box and papers dated March 2008. Service Papers dated February 2018.