A. Lange & Söhne Datograph Perpetual Watch
41mm 18K pink gold case, 13.5mm thick, transparent back, 18K pink gold bezel, scratch resistant sapphire crystal, silver dial with applied roman numeral & index hour markers, calibre l952.1 manual winding movement with hours and minutes, subsidiary seconds dial, chronograph with flyback and precisely jumping minute counter, perpetual calendar with outsize-date, day-of-week, month and leap-year display, moon-phase display, day/night indication, stop-seconds mechanism, approximately 36 hours of power reserve, brown alligator/crocodile leather strap, tang buckle.
