The Omega Seamaster Diver 300M Blue Ceramic Bezel in Stainless Steel. Model Reference: 188.8.131.52.03.001. Omega’s sporty Seamaster collection is a tribute to the brand’s maritime legacy. This exquisite example pays homage to Omega’s dive watch heritage and adventurous pioneering spirit. This timepiece is built like an elegant tank. When you pick up the watch you’ll immediately notice its heft. Alternating brushed and polished surfaces give the stainless steel case a handsome look without being gaudy. The signed crown screws in and out very smoothly. There’s a helium escape valve signed with the atomic symbol for the element. The unidirectional rotating bezel with a ceramic insert is a nice touch and adds a healthy dose of “bling” to the watch. This model features a blue dial with a date window at the 3 o’clock position and hour markers with a date function at 3 o’clock.The distinctive dial is visible through a scratch-resistant sapphire crystal. The domed, anti-reflective sapphire crystal is invisible, allowing you to see straight to the dial. The laquered dial is a deep blue that will change color a bit depending on the angle you’re viewing. Sometimes it’s flat and other times it’s a sea of liquid blue with luminous applied hour markers floating in it. Turn the watch over and you’ll see the trademark Omega sea dragon caseback engraving. The automatic movement ticking behind the dragon is an Omega-modified ETA 2892 (Caliber 2500). It is a certified chronometer that uses Omega’s co-axial escapement technology. It beats at 25,200 bph (7 bps) vs the usual 8 bps, so if you compare it to another watch with a ETA 2824 you can see the second hand has a longer “stride length”. The bracelet on the Seamaster uses Screwpins instead of pushpins, so adjusting the size of the band is easy. The watch is presented on a stainless steel bracelet and also includes an Omega blue leather strap and deployant buckle. This watch has a maximum power reserve of 48 hours. Water resistant to 300M. The watch comes in original packaging, with a set of documents.