A. Lange & Söhne Datograph Perpetual Tourbillon (2016)

limited to 100pcs, in platinum; priced at 295,000

Introduced in 2016
Now available in platinum and gold
Measures 41.5 mm in diameter and 14.6 mm in thickness
The most complicated Datograph model as of 2022
Hacking tourbillon and instantenous perpetual calendar mechanism