Rolex Gmt-Master Ii 116710LN Men’s Silver-tone Black Dail 40MM

Power Reserve: 40 Hours. Power reserve time is a impotant thing for a watch, 40 hours power reserve and 28800 fluctuations, which is pretty good.

Watch Case: 316L. The material of this case comes from 316L, which not only directly protects the internal parts of the watch, but also determines the various performance indicators of the watch to a large extent.

Band Material: 316L. The band is made of high-grade stainless steel alloy 316L. It is corrosion resistant, easy to weld, durable and safe to use.

Bezel Material: Stainless Steel. The bezel, made of stainless steel bezel, is the perfect material to use when designing a watch. The bezel will have endurable elegance, high performance, and high durability.

Engine: Rolex Calibre 2836. The ETA 2836 movement is a Swiss-made quartz movement with higher precision than ordinary quartz movements. The movement’s normalization capability ensures reliability and durability.

Luminiscence: Hands and Markers. For the watch, the luminiscence is hands and markers. It makes your watch look more funny and functional.

Crystal: Sapphire Crystal. Sapphire crystal is a unique optical material. It is not only dazzling, but also scratch-resistant. The color rendering index (CRI) of the anti-reflective coating is 100, and the brightness is increased by up to 50%.

Second Markers: Minute Markers around the outer rim. The design of the other marks in the watch is that the second mark is a small disc, placed on the outside of the clock to indicate the time.

Dial Markers: luminous dot. This watch uses a luminous spot, we can determine the time by observing the spot.

Water Resistance: 100 meters. About the watreproof depth of the watch, it is 100 meters, which has a good waterproof function.(The ordinary Automatic movement is just daily waterproof, need to purchase additional waterproof service which is up to 100 meters.)

Case Back: Solid. We use a sturdy bottom cover that can be used for many years. There are many boxes made of various materials. These watch cases cannot prevent damage and are easily damaged. The backs of these watches are sturdy and can be used for many years.