The watch most likely meant by “Seiko Prospex Samurai Save the Ocean, Asia Special Edition” is the SRPF79, also listed as SRPF79K1. Seiko’s regional product pages call it the “Save the Ocean Special Edition”; an official retailer calls it the “King Samurai.” Those names and references point to the same core specification set, but “Asia Special Edition” is not the edition name used on the Seiko pages reviewed. Seiko’s UK product page is a useful reference for identifying it.
Which watch is the Asia Special Edition?
Use SRPF79 or SRPF79K1 when searching for this watch. Seiko identifies the model as SRPF79 on its regional pages, while variant references and retailer material use SRPF79K1. Seiko’s official wording is “Save the Ocean Special Edition,” and an official retailer refers to it as the “King Samurai.” The pages reviewed do not establish “Asia Special Edition” as Seiko’s formal edition name.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
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SEIKO SRPF03 Automatic Dive Watch for Men - Prospex Special Edition | $440.00 | Buy on Amazon |
| 2 |
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Casio Men's MDV106-1AV 200M Black Dive Watch (MDV106-1A) | $68.99 | Buy on Amazon |
| 3 |
|
SEIKO SRPL51 Automatic Diver Watch Men's Prospex - Blue | $476.00 | Buy on Amazon |
Seiko’s regional pages for the UK, India, Singapore and the Philippines show the same main specifications. Confirm the exact reference and seller when checking a listing, since names and regional availability may differ. Seiko India, Seiko Singapore and Seiko Philippines also list the model.
Seiko SRPF79/SRPF79K1 specifications
| Specification | Seiko-listed detail |
|---|---|
| Movement | Caliber 4R35, automatic with manual winding; approximately 41 hours of power reserve; 23 jewels; stop-seconds function and date display |
| Case dimensions | 43.8 mm diameter, 48.7 mm lug-to-lug, 12.8 mm thick |
| Case and bezel | Stainless steel case; stainless steel unidirectional bezel with ceramic display |
| Crystal | Sapphire with magnifier and anti-reflective coating on the inner surface |
| Strap and lug width | Silicone strap; 22 mm distance between lugs |
| Water resistance | 200 m / 660 ft, specified by Seiko as diver’s water resistance |
| Other features | LumiBrite on hands, indices and bezel; screw-down crown; screw case back marked “SPECIAL EDITION” |
These are manufacturer specifications, not results from independent testing. Seiko does not date the product specifications on the cited pages. See the Seiko UK specifications for the full listing.
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- WATER-RESISTANT: these water-resistant men's dive watches are ISO scuba-approved to depths of 200 meters
- AUTOMATIC: these self-winding, automatic men's watches are powered by your movement, with a power reserve of 41 hours
- STAINLESS STEEL: features a durable 43.8mm stainless steel watch case and bracelet.
- LUMIBRITE DISPLAY: this men's automatic watch features a highly-legible display with LumiBrite hands and markers
- 4R35 CALIBER: equipped with the reliable caliber 4R35 automatic movement, this accurate men's watch keeps precise time
How the dimensions may wear
The 43.8 mm diameter and 48.7 mm lug-to-lug measurement are useful fit checks, especially if you usually wear smaller watches. The lug-to-lug figure describes the span from one end of the lugs to the other; compare it with a watch that already fits you well. At 12.8 mm thick, the case also has more height than a slim dress watch. These numbers cannot guarantee fit because wrist shape, strap adjustment and personal preference matter.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What strap fits the SRPF79K1?
Seiko lists a 22 mm distance between the lugs and supplies the watch with a silicone strap. A replacement strap should be sized for that lug width; confirm the replacement’s fitting and dimensions before ordering. A 22 mm width alone does not establish compatibility with every strap design or attachment system.
Quick Recap
Rank #3
- STAINLESS STEEL CASE built to endure with style, making this watch your perfect daily companion
- AUTOMATIC MOVEMENT for seamless precision in every tick of this watch
- SCRATCH-RESISTANT CRYSTAL to maintain a pristine look even with daily wear and tear on your watch
- LUMINESCENT HANDS for effortless readability in low-light conditions, ensuring you never miss a moment with this watch
- WATER RESISTANT DESIGN ensuring your watch is ready for any adventure, rain or shine
Rank #2
- Stainless Steel case with Black Resin Band
- Black Dial with date window at 3 O'clock
- Luminous markers and hour hands; sweep second hand
- Anti-reverse bezel
- Water-resistant to 200 M (660 feet)
What to verify before buying
- Reference: Check that the listing identifies SRPF79 or SRPF79K1, rather than relying only on “King Samurai,” “Manta Ray,” or “Asia Special Edition” wording.
- Seller and variant: Confirm the seller, the exact watch variant and what is included. Regional stock and naming can vary.
- Price and availability: Check the seller’s current regional listing. The cited product pages establish specifications, not current stock or a universal market price.
- Fit: Compare the 43.8 mm case diameter and 48.7 mm lug-to-lug measurement with watches you already wear, and account for the 12.8 mm thickness.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
