CIGA Design Z Series Automatic Mechanical Skeleton Watch, Stainless Steel Men’s Wrist Watch Blue, strap

Sapphire Crystal – Only diamond in hardness, the Z Series sapphire crystal will withstand a lifetime of use and look exceptional. The crystal has a high level of scratch resistance but still allows the wearer to see the magnificent inner workings through the hollow design 316L Surgical Steel Case: Manufacturing the Z series from 316L stainless steel ensures durability and robustness. The CIGA Design Z series is robust, splash-proof and colorfast, so your watch is easy to clean and stays polished and shiny 26 Jewel Movement: The Z-series' 25 jewel bearings are vital to reduce friction at critical points, increase lifespan, and improve accuracy and durability. Formed from 176 parts and featuring 25 jewels, these beautiful ball bearings can be viewed through the watch's innovative hollow structure. This movement is made to be seen Self-winding mechanical movement: A custom Seagull automatic movement means it is your drive that powers our watches. Automatic watches harness kinetic energy from your activities which is used to run the mechanical movement. With a power reserve of up to 40 hours, the Z series can be left alone and continue to function Interchangeable Bands: Z series comes with FDA approved silicone strap with super smooth flexibility and sweatproof design, providing ultimate ergonomic comfort. With many strap designs available, the quick change spring bar allows you to change the strap for any occasion