Omega Produced by SJ .Omega OMEGA F6 Seamaster Aqua Terra Men's Watch V2 Upgrade! Steel strap upgraded, with width matching the genuine product.- New Seamaster 42MM diving watch features: .1. New Seamaster upgraded with black screws and balance wheel.2. New Seamaster upgraded to match the genuine product with a full ceramic dial.3. Upgraded markings and lettering on the ceramic bezel, using white enamel craftsmanship that is not prone to yellowing and has a glossy finish.4. Upgraded luminous effect consistent with the genuine product; the minute hand and the luminous pearl on the ceramic bezel glow green, while the overall glow is blue.S1 finely recommended men's mechanical watch.