A. Lange & Sohne Ursa Major

Movement: mechanical, self-winding.
Size: diameter 46mm, height 12 mm.
Functions: hours, minutes, seconds, date, month, day of the week, 24 hours.
Case: steel.
Mineral-crystal glass.
Caseback on screws with transparent window.
Dial: white.
Strap / Bracelet: leather with deploying clasp.
The price of the original: 4900$.
No docs and box