- This piece is a re-interpretation of Japan's - and Seiko's - first-ever Diver's watch which was released in 1965 and marked the beginning of Seiko's expertise in diving watches.
- From 1966-1969, this watch was worn by members of the Japanese Antarctic Research Expedition, proving its durability and reliability in challenging environments.
- With a case design inspired by the original 1965 piece, carrying the name 'Marinemaster' from Seiko's heritage in diving watchmaking, the aesthetic is modernised with an elegant marine sports style.
- In a more compact case size than previous re-interpretations, it recreates the silhouette of the first piece.
- 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.
- An aquatic green dial with a textured horizontal pattern dial Seiko Men's watch.
- The mechanism used is an 6L37 automatic with manual winding movement. This calibre movement is complete with 26 Jewels and a 45-hour power reserve.
- The uni-directional rotating bezel: The precise and safe operation of the uni-directional bezel prevents accidental rotation. This is to prevent the watch from displaying the elapsed time shorter than it is.
- Premium anti-reflective box-shaped sapphire crystal glass provides better protection from scratches in your daily life.
- Lumibrite hands, bezel and indices make this watch easy to read wherever you are.
- Displays date at between 4 and 5 o'clock.
- A stainless-steel case with sapphire exhibition case back and screw-down crown watch.
- A stainless-steel bracelet finished with a three-fold clasp with a secure lock, push button release with an extender to ensure security on the wrist.
- 200m water-resistant watch.
- 2-year manufacturer warranty.
| Warranty | 2 years |
| Edition | Seiko Prospex |
| Dial Colour | Green |
| Date Feature | Date display at between 4 and 5 o'clock position |
| Usually For | Men |
| Glass | Sapphire Crystal |
| Water Resistancy | 200 Metres |
| Case Width | 40mm |
| Case Thickness | 12.3mm |
| Case Back | Exhibition |
| Case Material | Stainless-steel |
| Band Material | Stainless-steel |
| Band Width | 20.0mm |
| Band Type | Bracelet |
| Clasp Type | Three-fold |
| Bezel | Uni-directional |
| Crown | Screw-down |
| Movement | Automatic |
| Calibre | 6L37 |
| Jewels | 26 |
| Power Reserve | 45 Hours |
| Accuracy | -10/+15 seconds per day |
| Vibrations | 28,000 vibrations per hour (10 beats per second) |
| Magnetic Resistance | 4,800 A/m |
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