V12 Latest Upgrade: 8500 Co-Axial Movement, Three-in-One, Best-Selling Classic Item. Omega Seamaster 150m Series Men's Mechanical Watch, 2020 All-New Upgraded Version Has Arrived. Customized 8800 Movement Plates with Exclusive Design, the movement replicates and restores the 8800 Co-Axial Movement, showcasing the transparent back of the movement for a perfect view. The case is made of 316L stainless steel, crafted with exclusive CNC technology, and features a curved, highly durable scratch-resistant glass. The dial has clear and evenly spaced patterns, offering triple water resistance. Case diameter: 41/11mm. The strap is made of Italian imported rubber, available with either the original folding clasp or a 316 stainless steel original clasp. Exclusive quality code: 83145368.