A. Lange & Sohne Perpetual Calendar Ursa Major

Movement: mechanical, self-winding.
Size: diameter 41 mm, height 13 mm.
Functions: hours, minutes, seconds, year, month, date, day of the week, 24 hours
Case: polished steel.
Mineral-crystal glass on the top and bottom.
Very heavy and strong construction. Weight to exact original
Dial: light cream, oblong hour markers, three subdials
Strap / Bracelet: leather band with classic clasp.
No docs and box