OMEGA Seamaster Diver 300M

The Omega Seamaster Diver 300M 210.30.42.20.01.018 is a dive watch with a 42 mm steel case. It measures 13.8 mm thick with a lug-to-lug of 49.7 mm, and the black dial sits under a domed, scratch-resistant sapphire crystal with antireflective treatment. A unidirectional rotating bezel surrounds the dial, and the screw-down crown works alongside a helium valve for saturation diving. The self-winding calibre 8806 inside is Master Chronometer certified, resistant to magnetic fields up to 15,000 gauss, and runs on a free sprung-balance with a silicon hairspring. Power reserve stands at 55 hours. A sapphire display back shows the movement's finishing. The watch is fitted with a steel bracelet and a foldover clasp. Rated to 300 metres, the case suits both diving and daily wear.