Omega Speedmaster 3581.30.00 Men’s 42mm Stainless Steel Silver-tone

Case Back: Transparent. The transparent back cover is not soft or inflexible in any respect. It helps you see the engine inside clearly.

Water Resistance: 30 meters. A good waterproof of the watch has been applied, it is 30 meters, which is a good feature for the watch.(Standard configuration is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.)

Clasp: Fold Over Clasp. This watch case has a designed clasp to make it easier and quicker for the user to open and fold the case over to keep it secure.

Bezel Material: Stainless Steel. The stainless steel bezel is the prime material used for watch making. It has is more simple and endurable. It makes you improve your taste from the inside out.

Band Material: 316L. The raw material for this band is 316L steel, which is a very strong and corrosion-resistant steel. It has the same strength as the most popular grades (HRC52, HRC55), but only half the weight. Compared with competitors, the production cost of stainless steel is also higher.

Dial Markers: Index. The index on the dial unlike the normal dial, the watch uses some simple indexs as dial markers to show us what time it is.

Luminiscence: Hands. About the luminosity of the watch is hands. It can help you know the corresponding time when you running in dark.

Second Markers: Minute Markers around the outer rim. The minute mark on the outer edge of the glass is a design element that represents time and can be used in various applications, such as clocks and radios with clocks, to create timeless creations.

Hand: Silver-tone. The hand design of the watch is silver-tone. It blends perfectly with the dial.

Watch Case: 316L. The case uses 316L for daily seawater corrosion, and 316L steel is completely sufficient.