Up for grabs is an A. Lange & Söhne 1815 Rattrapante Perpetual Calendar Ref. 421.025FE in platinum. Housed in a 41.9mm platinum case from the 1815 family, this model combines some of Lange’s most advanced complications: split-seconds chronograph, perpetual calendar, moonphase indicator, power reserve indicator, day display, and analogue date. Purchased new in 2021, this example remains unpolished and lightly worn, with only minor marks visible on the bezel. The watch is running properly, keeping time, and winds smoothly. It will be delivered on a brand new, unworn original A. Lange & Söhne strap with its original platinum folding clasp. Offered as a complete set with original boxes, manuals, warranty papers, and push pin setting tool. Current MSRP is $253,500.