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The Seiko Prospex SLA055 and SLA057 are limited-edition reinterpretations of the brand’s 1968 diver, released in January 2022. Their main differences are dial and edition size: the SLA055 has a blue Antarctic-inspired dial and a 1,300-piece production run; the black-dial SLA057 is limited to 600. They share the same movement and core case specifications.
How the SLA055 and SLA057 differ
Seiko presents both watches as Save the Ocean editions in its 1968 Diver’s Modern Re-interpretation line. The blue SLA055 emphasizes a patterned, Antarctic ice-inspired dial; the black SLA057 uses a color Seiko describes as faithful to the original design. Seiko announced production runs of 1,300 and 600 pieces, respectively. These are manufacturer-published edition quantities, not current counts of watches available for sale.
| Feature | SLA055 / SLA055J1 | SLA057 / SLA057J1 |
|---|---|---|
| Dial | Blue gradient with an Antarctic ice-inspired pattern | Black; Seiko describes the color as faithful to the original design |
| Limited production | 1,300 pieces | 600 pieces |
| Strap presentation | Silicone strap, with an additional fabric strap included | Seiko highlights a fabric strap made using its Seichu braiding technique |
| Movement | Automatic Caliber 8L35 | Automatic Caliber 8L35 |
| Power reserve | 50 hours | 50 hours |
| Case size | 42.6 mm diameter; 13.1 mm thick | 42.6 mm diameter; 13.1 mm thick |
| Water resistance | 200 m diver’s | 200 m diver’s |
| Announced availability | January 2022 | January 2022 |
Seiko’s SLA055 product page documents the model and its specifications. The December 14, 2021 launch announcement gives the edition quantities and launch context. Reference suffixes and packages can vary by market, so check the exact reference and included items on any individual listing.
Shared specifications
Seiko lists these manufacturer specifications for the pair; they are not independent test results.
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- 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
- Movement: automatic Caliber 8L35, with 26 jewels and a stated frequency of 28,800 vibrations per hour (8 beats per second).
- Power reserve: 50 hours.
- Case and bezel: Ever-Brilliant Steel; 42.6 mm case diameter and 13.1 mm thickness.
- Crystal: dual-curved sapphire with anti-reflective coating on the inner surface.
- Construction: screw-down crown and caseback; LumiBrite on the hands and indexes.
- Water and magnetic resistance: 200 m diver’s water resistance and 4,800 A/m magnetic resistance.
The 200 m diver’s rating is a specification for the watch design, not a guarantee about a particular used example. Water resistance can depend on condition and seal integrity; a pre-owned watch should be assessed and tested by a qualified watch service professional before exposure to water.
Design, release, and Save the Ocean context
Seiko describes the watches as modern reinterpretations of its 1968 diver. The company says the blue SLA055 dial evokes Antarctic ice and expresses a wish for the landscape to endure despite climate change. That is Seiko’s account of the design intent, rather than an independent climate assessment. The black SLA057 offers the alternative for buyers who prefer a less overtly patterned dial.
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- 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
In its launch announcement, Seiko said the watches would be available from January 2022 at Seiko boutiques and selected retail partners worldwide, and that members of the 63rd Japanese Antarctic Research Expedition (JARE) would wear them. Seiko also said it contributed to Japan’s National Institute of Polar Research in Tokyo and donated watches to the expedition team. Its Save the Ocean overview describes a broader range of marine-conservation activities. The cited materials do not specify a donation amount per watch sold, so a purchase should not be understood as funding a fixed sum or percentage.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Launch price and buying considerations
Seiko’s 2021 announcement listed an approximate recommended European retail price of €4,600. That is historical, region-specific launch pricing, not a current asking price or evidence of present availability. The cited official information does not establish current stock, resale values, or the status of individual marketplace sellers.
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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
If considering one now, compare the watch’s condition and service records, seller and provenance, whether the included straps and papers are present, price, and return policy. The choice between references is otherwise chiefly a matter of dial preference and edition size; their cited movement and principal case specifications are shared.
Quick Recap
Best Value
- SEIKO WATCH – Seiko SRPL15 Prospex wristwatch.
- COLLECTION – Prospex design.
- CASE DESIGN – Prospex Mare model format.
- MODEL REFERENCE – SRPL15 identifies the specific model.
- WATCH DIAMETER – 41.7 mm.
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- KHAKI GREEN DIAL: this rugged sports watch features a khaki green dial patterned to mirror the shape of the bezel’s edge, with Lumibrite dial indicator hands and markers for low light and a magnified day/date calendar
- BLACK BEZEL: this versatile men’s watch features a black ceramic unidirectional bezel with distinctive scalloped edging, for elapsed timing
- AUTOMATIC & MANUAL: SRPE05 automatic watches for men power up with your natural movements, and feature the ability to wind manually, with 41 hours of reserve power
- WATER-RESISTANT: these rugged stainless steel dive watches for men feature a khaki green silicon strap, and are both stylish and robust, following ISO standards for scuba, and are water-resistant to 200 meters
- 4R36 CALIBER: equipped with the reliable 4R36 caliber, these precise men’s wrist watches ensure the most accurate timekeeping
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.
