Crystal: Sapphire Crystal. Sapphire crystal is the best choice for most people. It is a high-end, well-reputed sapphire. Tips: The A Replica is applied with mineral glass instead of sapphire.

Water Resistance: 30 meters. The watch we use a waterproof at 30 meters. But make sure to close the crown properly. Tips: Standard configuration is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.

Clasp: Deployment. The innovative design of this watch which has a unique design that creates a secure clasp, which can be opened and closed with ease.

Watch Case: 316L. The case is made of 316L, the hardest material, which is one of the most heat-resistant stainless steel grades. Its corrosion resistance is very good, even at temperatures as high as 1100*F, without any further heat treatment.

Band Material: Rubber.We use a rubber strap is really nice for the hot and wet summer days.

Case Back: Solid. We use a sturdy bottom cover, which allows you to use and keep the watch for a long time. Except for the quartz version is with a solid case back, other versions have the same case back just as original watch.

Dial Markers: Index and Arabic Numeral. Indexs and arabic numeral were used in this watch is used as dial markers instead of usual Roman numerals to indicate the time.

Second Markers: Minute Markers around the outer rim. The design of the second hand in the watch is as shown in the figure above. The second hand is a small disc placed outside the clock to indicate the time.