Breguet Classique Perpetual Calendar

Movement: mechanical, self-winding.
Functions: hours, minutes, seconds, month, day, date, day/night.
Size: 40 mm by 11 mm.
Case: polished steel
Dial: silvered, guilloche, black Roman Numerals, four subdials
Mineral-crystal glass on top and bottom.
Strap / Bracelet:leather band with steel clasp.
No docs and box