Single watch winder is handcrafted of leather with Negroni tweed lining  WM Brown x Wolf Collaboration  Counts exact number of rotations  Locks timepiece into drum for secure fit  900 turns per day  Battery option (AA not included) Approx. 5.3"L x 6"W Item Weight (Lbs.): 2.0 Imported About WOLF: WOLF is a five-generation family-owned company that has been protecting legacies for 190 years. Since 1834, the WOLF mark has been a symbol of decades of innovation and the pursuit of the perfect design. WOLF knows for a legacy to endure it must be nourished and upheld. They are dedicated to honoring people’s stories and the priceless jewelry and timepieces entrusted to them.