This in not just a Seiko MarineMaster 300, but the 140th Anniversary Limited Edition Saturation Diver reference SLA047. To mark the 140th anniversary of the founding of Seiko, Prospex is celebrating its rich legacy of innovation in high-intensity timekeeping and Seiko's role as the preferred watch for explorers under the sea, on land and in the air. Complete with a special Limited Edition caseback, this extraordinary watch, following ISO standards for mixed gas diving at depths of up to 300 meters, also pays tribute to one of the world's leading diving destinations, Irimote Island, one of the Yaeyama Islands, off Okinawa, nicknamed "the Galapagos of East Asia," with a rich "Island Green" theme reflecting the verdant primeval forests of Irimote. Featuring a durable one-piece stainless steel case in 44mm diameter, with super-hard coating, this landmark timepiece includes a black ceramic uni-directional rotating elapsed timing bezel surrounding a green dial with date calendar and large LumiBrite markers and hands designed for enhanced legibility. 

This MarineMaster 300 140th year limited edition SLA047/SBDX043 Marinemaster 300M is as new!. Warranty activated on 2-4-2024, so almost 2 years warranty until 4-2026!