SAPPHIRE CRYSTAL This watch has mounted sapphire crystal, which is the strongest and most resistant glass a watch can have. | 316L STEEL The watch is made of 316L surgical stainless steel, which is considered to be the best quality of steel for the production of watches. | WATERPROFF The watch is waterproof to 200 meters (20 ATM). This means that it can be used for all kinds of water activities - including tank diving. |
