Blancpain. An 18k Gold and Stainless automatic calendar wristwatch

Blancpain. An 18k Gold and Stainless automatic calendar wristwatch,
Model: Villeret
Reference: 1644
Movement: 19 jewel Cal.9513 automatic, adjusted to 5 positions, gold rotor
Dial: White, applied gilt Roman numeral hours, date window at 3, gilt lead hands
Case: Polished round, snap on back, no 2751
Strap/Bracelet: Brown, Blancpain, ostrich leather
Buckle/Clasp: Signed stainless steel
Signed: case, dial, movement
Size: case 34mm