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Key Features:
- Prospex Tuna Professional 300m Divers Collection.
- This watch shape is affectionately nicknamed by Seiko fans as a ‘Tuna’ - because of its larger diameter and bold shape like a tuna tin - loved for decades since its release.
- The accordion-style silicone strap combines high durability and comfort - a strap design invented by Seiko in 1975 as a practical solution to the expansion and contraction of a diver's wrist at different depths.
- This model features simplified indices making it easy to read underwater.
- Plus its case back shows the new ISO standard stating it's diver's watch capability and metre depth for saturation diving.
- Seiko Prospex watches are designed for sports lovers and adventure seekers in the water, in the sky or on land.
- Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative watchmaking has changed global dive watch standards.
- This watch is part of Seiko Prospex Tuna collection, with an origin dating back to the 1970s, updated with latest refinements.
- 300 metres professional diving watch for saturation diving.
- Silver stainless steel case with super-hard coating.
- Domed Sapphire glass with anti-reflective coating provides better protection from scratches in your daily life.
- 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.
- Displays date and days of the week at the 3 o'clock position.
- Screw-down crown and case back.
- A black dial Seiko Men's watch.
- The easy to read dial features luminous indexes, hands and bezel.
- Black silicone strap finished with a buckle clasp to ensure security on the wrist.
- The watch bezel is finished with minute marking.
- 2-year manufacturer warranty, extended to 3 years through the WatchO Extended Warranty offer.
| Warranty | 2 years + 1 year extended from WatchO |
| Edition | Seiko Prospex Tuna |
| Usually For | Men |
| Water Resistancy | 300 Metres |
| Dial Colour | Black |
| Date Feature | Date display at the 3 o'clock position |
| Day Feature | Day display at the 3 o'clock position |
| Glass | Sapphire Crystal |
| Case Colour | Silver |
| Case Width | 47.7mm |
| Case Thickness | 14.1mm |
| Case Shape | Round |
| Case Back | Screw case back |
| Case Material | Stainless-steel |
| Band Colour | Black |
| Band Material | Silicone |
| Clasp Type | Buckle |
| Bezel | Unidirectional Rotating Bezel |
| Crown | Screw-Down Crown |
| Movement | Quartz |
| Calibre | 7C46 |
| Battery Life | 5 years |
| Accuracy | ±15 seconds per month |
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