Brand New Authentic Blancpain Villeret Complete Calendar 8 Jours Men's Watch Model 6639-3637-55B. 18kt Rose Gold case with Brown Crocodile Leather strap. Deployment clasp. Black dial. Automatic Self Winding movement. Scratch Resistant Sapphire crystal. Case size: 42mm. Case thickness: 13.07mm. Transparent case back. 30 Meters/100 Feet water resistant. 2 year WatchMaxx warranty. Also known as model: 6639363755B.