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Seiko - Marinemaster Professional 1000m Diver’s

Seiko Marinemaster Professional 1000m Diver’s

Prospex Marinemaster collection celebrates 50 years of Seiko’s diver’s watch excellence.

It was in 1965 that Seiko made its first ever diver’s watch. From the first use of a titanium case for a diver’s watch to the invention of the accordion-style strap and the twolayer case to the design of dial markers and hands of unparalleled legibility, Seiko has been a pioneer in the field. In 2015, the brand welcomes two new timepieces in the Marinemaster series. Today, we are introducing the Marinemaster Professional 1000m Diver’s.

Like its 1975 predecessor, the new Marinemaster Professional 1000m Diver's has the two-layer case construction that is now the trademark of Seiko’s professional diver’s watches. Thanks to the strength of the inner case structure, the specially designed L-shaped gasket and the screw-down glass fixing ring, the watch is effectively impermeable to helium and can be safely used for saturation diving to great depths. The use of ceramic for the outer shell enhances shock resistance and also prevents any unintentional rotation of the bezel. In September 2014, Seiko professional diver’s watches of the same case construction were subjected to the most extreme test imaginable. Affixed to the exterior hull of KAIKO 7000 II, a remotely operated undersea research vehicle, they performed perfectly down to a depth of 3,000m.

Seiko - Marinemaster Professional 1000m Diver’s

This new creation incorporates a mechanical caliber specially adjusted for a diver’s watch. The movement is caliber 8L35, and it is made and assembled, as is the complete watch, by Seiko’s leading craftsmen at the Shizuku-ishi Watch Studio. The hands and markers are coated with a new version of Seiko’s Lumibrite, which glows for 60% longer than in the past. The strap is made of extra-strength silicone for greater durability.

The brand

The history of Seiko is a more than 130 year story of innovation. From the very start, Kintaro Hattori was determined to be at the forefront of the industry and his oft-repeated credo was that Seiko should be “Always one step ahead of the rest.”

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