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First, its size is 40.9mm×12.3mm, which can satisfy your requirement in sense of beauty. It is a little big with such diameter, and it is thinner than other normal wrist watch. Using such different size proportion really can give us special feeling in vision. And such unique style is almost revealed in every design details perfectly. Its case was made of solid 316L stainless steel, which is so delicate and bling in appearance. Combining with the scratch-proof sapphire crystal, it is so perfect collocation that has reflected its skillful craftsmanship fully. And also reflects the extraordinary temperament of wearer at the same time. Its dial uses black color, which can highlight its elegance and nobleness. What’s more, It’s markers are in golden, really a good matching with its black dial. It can be more lived with such decoration. Gold and black as main color in the whole, it reveals the style of gentleman. As we all known, In China, gold color means noble, which is only used for king in ancient age, and most of us still has this feeling now.

The chemical composition of synthetic green sapphire includes copper and aluminum oxide, with the copper being the element that is ultimately responsible for its signature green hue. The process of synthetic sapphire production is an expensive and exacting one; however, the additional obstacles that accompany the addition of copper – and the precision required to achieve the right amount of green tint without compromising the strength or clarity of the crystal are likely responsible for its exclusive use on the Rolex Milgauss line of watches.When synthetic sapphire is manufactured, the material has to “grow” over the course of a period of several weeks. Particles attract to one another, forming layers that fuse together to create a dense and ultra-hard substance. The end result of production is a “boule” – a solid piece of synthetic sapphire shaped like a chunky cylinder, which is then cut and shaped to its necessary dimensions.Due to the high costs of production, most watch crystal manufacturers cut their synthetic sapphire boules in a perpendicular fashion, as to maximize the number of crystals that can be created from a single boule. Although this is entirely unconfirmed, it is rumored that Rolex cuts the boule along a diagonal axis to maximize the clarity and strength of the finished crystal. In addition to complicating the cutting and shaping process itself, cutting the boule along a diagonal axis significantly increases the amount of waste, which further adds cost to an already expensive manufacturing process.Despite not making an appearance until just over ten years ago, the green sapphire crystal has quickly become one of the defining characteristics of the Milgauss line. Its pale green tint possesses no functional advantages over a traditional, clear/uncolored synthetic sapphire crystal; however, the green crystal that is exclusively fitted to the Rolex Milgauss 116400GV is one of the primary reasons that individuals seek out this particular reference. The green crystal is something entirely unique to the Milgauss collection and is not something that is found on any other Rolex watch, past or present.

Lastly, both the 16613 and the 116613 are fitted with stainless steel and 18k yellow gold Oyster bracelets. Depending on the year released, the ref. 16613 has either solid or hollow end-links, either a stamped or link-style fold-out extension system, and either a gold-through or an all-steel clasp. Collectors have different preferences on 16613 bracelet styles, making it a fun watch to collect.The ref. 116613 offers a more substantial hold on the wrist than its 5-digit predecessor and features solid gold center links, solid end-links, and a machined Oysterlock clasp with an innovative Glidelock extension system. The solid construction of the bracelet balances the Super Case nicely on the wrist for a supremely comfortable hold, even over wetsuits.While the ref. 116613 is noticeably more modern in appearance, it still boasts many similarities to the ref. 16613 in the form of a versatile two-tone finish, similar dial and bezel color options, the same water-resistance of up to 1,000 feet (300 meters), and an Oyster bracelet that wears comfortably and allows for tool-free adjustment over wetsuits. When collecting, it ultimately comes down to preference; do you prefer a classic or a contemporary dive watch?The Rolex Sea-Dweller Deepsea is the most robust and over-engineered dive watch in Rolex’s current lineup. While the regular Sea-Dweller is water-resistant to an insane depth of 4,000 feet, the Deepsea has an absolutely abyssal depth rating of 12,800 feet, which is more than 100 times further below the surface of the ocean than any human could physically survive.Although the case of the standard Rolex Sea-Dweller is not all that different from that of a Submariner, the Deepsea has a re-designed case architecture that allows it to stand up to the crushing pressures found at 12,800 feet below sea-level. As a result of its more rugged and highly specialized build, the Deepsea is among the largest Rolex watches currently in production, with a case diameter of 44mm, and an overall thickness of just under 18mm.