Produced by SJ .Omega Seamaster 300m GR3 .1: The dial surface has a glossy and transparent finish, characteristic of the Seamaster 300 series.2: The case features finely brushed textures with no interruptions, and the bezel rotates with a crisp and smooth sound.3: The markings and letters on the ceramic bezel use a white enamel process that resists yellowing, ensuring a long-lasting pure white and glossy appearance, with brighter lettering.4: The high-difficulty 9-link stainless steel bracelet is meticulously polished to ensure precise assembly, with flexible links that fit comfortably. It can be easily swapped with a rubber strap, allowing for a change in wearing style.5: Equipped with a reliable chronograph movement, the watch features a second hand at the 9 o'clock position, a 30-minute chronograph at the 3 o'clock position, and a 12-hour chronograph at the 6 o'clock position. S1 is a refined recommendation for men's multifunctional mechanical watches.