The SPARTA 6 WALL SAFE winder has been designed to provide secure, hidden protection for up to six automatic wristwatches at reasonable cost. Solid steel construction throughout, with a steel 3/16" pry-resistant door, offers excellent burglary resistance. The electronic pushbutton lock is fast and easy to program and use. The sturdy fold-down steel door is fitted with heavy steel support stays and provides a convenient workstation. The interior surface of the door is fitted with a cushioned suede work surface to prevent any metal-to-metal contact. Internally mounted high-energy Lithium batteries inside the safe will provide many, many years of service life. There is no need for any external power source Security features include two separate monitoring alarm contacts: Open Door Signal: Whenever the door is in the open position, an alarm system can notify the user or a monitoring service that the safe is unlocked. Silent Alarm Signal: Secretly signal a monitoring device that an intruder is in the home. The SPARTA 6 WALL SAFE is designed for quick and easy installation between 16" on center wall studs (2x4 or 2x6). When the WALL SAFE is mounted in walls with studs, trim or filler strips between the wall and the frame flanges may be required to assure an attractive installation. In either case, the built-in steel mounting flange o the WALL SAFE eliminates any unnecessary patching or re-plastering after the installation is made.