Inspired by the original box for a very special watch, Cortiça is handmade from natural cork, a sustainable material grown in Portuguese forests. Featuring a unique hexagonal design with metal edging detail and forest green recycled material interior. Wind your watch to perfection in the Cortiça Single Watch Winder.Patented innovation - TPD guaranteed by patented method of counting turns – no other company counts TPD, they simply estimate. Lock-in dynamic cuff - Patented lock-in dynamic cuff ‘locks’ your timepiece into the rotator drum for a secure fit. Low density foam to accommodate all wrist sizes without putting pressure on your bracelet Exclusive - Return to start - Your watch will return to the position it started in when the cycle has completed Rotation - 10 second start delay, 900 TPD (Turns Per Day), patented rotation programs - Intermittent rotation with pause and sleep phases pre-programmed. Directional settings - Clockwise, counter clockwise and bi-directional Power reserve setting - 6 to 72 hours in increments of 6 hours power reserve setting to accommodate watches with a power reserve, giving the watch time to release stored energy before the winding program begins Battery Option - Option to run the unit on AC power (universal adapter included) or AA batteries - alkaline or lithium (lithium batteries will last twice as long as alkaline batteries). Batteries not included. Storage - 1 winding module