This particular design is a celebration of the 40th anniversary of the world’s first hybrid diver’s watch with alarm chronograph. The original watch proved its reliability in extreme environments including the Japanese Antarctic Research Expedition in 1984 and the Joint Mount Everest Challenge made by the Japanese, Chinese and Nepalese team in 1988.

The new calibre H855 has been upgraded with improved visibility for diving, with a larger display at the 6 O’Clock position. It also features diving log, depth metre and temperature measuring functions. The strap is silicone and the outer case is reinforced to make it durable, yet lightweight, whilst the bezel and minute hand have light blue indices for improved legibility, even in deep water.

The PADI timepiece collection is exclusive to Seiko, as the only global watch brand to design a range of professional diver’s watches in official colours featuring the PADI logo. PADI (The Professional Association of Diving Instructors) is the world’s leading scuba diving training organisation, unifying divers around the globe who share a passion for adventure and love for the ocean.

Prospex is a combination of the words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.

Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative watchmaking has changed global dive watch standards.

Movement
- Accuracy: ±15 seconds per month (±1 second per day)
- Calibre: H855
- Movement Type: Quartz Solar

Watch Case
- Case Material: Stainless Steel
- Case Thickness: 14.19mm
- Case Diameter: 46.92mm
- Case Length: 50.94mm
- Lug Width: 22.0mm

Exterior
- Dial Colour: Black
- LumiBrite: Lumibrite on hands and indexes
- Clasp: Pin buckle
- Strap/Bracelet: Silicone

Other Specifications
- Water Resistance: 20 bar
- Crystal Type: Hardlex