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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsSeiko’s 2022 Prospex Black Series comprises four limited-edition divers: SPB253, SPB255, SPB257 and SLA061. The three SPB references each had a stated edition of 5,500; the higher-specification SLA061 was limited to 1,000. All four were announced for March 2022, so those historical edition figures do not establish present-day stock.
Which watches are in the 2022 Black Series?
Seiko presented the collection as four watches inspired by night diving. Its official concept uses a black case to evoke the dark sea and orange accents to represent underwater lights. Seiko also says the hands and markers use Lumibrite for legibility in dark conditions; that is the manufacturer’s description, not an independent visibility test. The SPB models include a Seichu-braided fabric strap and an additional black silicone strap. Seiko’s 2022 collection page identifies these models and their announced release details.
| Reference | Design basis | Movement | Edition and announced timing |
|---|---|---|---|
| SPB253 | Modern reinterpretation of the 1965 Mechanical Diver | Caliber 6R35 | 5,500 pieces; March 2022 |
| SPB255 | Modern reinterpretation of the 1968 Mechanical Diver | Caliber 6R35 | 5,500 pieces; March 2022 |
| SPB257 | Modern reinterpretation of the 1970 Mechanical Diver | Caliber 6R35 | 5,500 pieces; March 2022 |
| SLA061 | Modern reinterpretation of the 1970 Mechanical Diver | Caliber 8L35 | 1,000 pieces; March 2022 |
Counts and release timing in the table are Seiko’s collection-page announcements; they do not indicate how many watches remain available today.
How do the three SPB references differ?
The main distinction Seiko gives is their historical design basis: SPB253 draws on the 1965 diver, SPB255 on the 1968 diver, and SPB257 on the 1970 diver. All three use Caliber 6R35 and share the same announced 5,500-piece edition size. Seiko describes its 1965 model as Japan’s first diver’s watch and says it was used in Antarctica in the 1960s. The brand says the original 1968 model had 300 m water resistance and a 10-beat automatic movement; its modern reinterpretation is 42 mm.
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#1 Best Overall
- 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
For the 1970 heritage, Seiko says the original was worn by adventurer Naomi Uemura during a solo dogsled journey of 12,000 km from Greenland to Alaska between 1974 and 1976. The brand says the SPB257 updates the original’s 150 m water resistance to 200 m and uses sapphire crystal. These are Seiko’s historical and product descriptions, not independent assessments. See Seiko’s collection description.
What sets the SLA061 apart?
SLA061 shares the 1970-diver design lineage with SPB257, but it is a distinct reference with a different movement and smaller edition. Seiko specifies Caliber 8L35, automatic winding with manual winding capability, approximately 50 hours of power reserve and stated accuracy of +15/-10 seconds per day. Its US product listing gives the following model-specific specifications and a listed price of USD 3,300; price and availability can change, and the listing is not a current-market valuation.
Rank #2
- 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
| SLA061 specification | Seiko US listing |
|---|---|
| Water resistance | 200 m / 660 ft diver’s water resistance |
| Diameter | 44.0 mm |
| Thickness | 13.0 mm |
| Lug-to-lug | 49.3 mm |
| Lug distance | 20 mm |
| Crystal | Curved sapphire with inner anti-reflective coating |
| Case material | Stainless steel with hard coating |
| Included additional strap | Silicone strap, alongside the steel bracelet |
| Listed price | USD 3,300 on Seiko’s US page; territory-specific and subject to change |
These dimensions, specifications and price come from Seiko’s US SLA061 product page; they should not be assumed to apply to other Black Series references or regional listings.
Is SLA061 the same watch as SLA035?
No. SLA035 is an earlier, separate Black Series model. Seiko UK lists it as a 600-piece saturation diver with Caliber 8L35 and 300 m / 1,000 ft water resistance. Its listed dimensions are 44.3 mm in diameter, 15.4 mm thick and 50.5 mm lug-to-lug. Those figures belong to SLA035, not SLA061. Seiko UK’s SLA035 page provides its model specifications.
Rank #3
- 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
Does “The Black Series” refer only to the 2022 watches?
No. Seiko has used the Black Series label for releases in multiple years, so a reference number matters when comparing edition counts or specifications. Its Singapore page names SSC673, SRPC49 and SNE493 in a 2018 Black Series release. Seiko Japan’s 2020 page names SBDC095, limited to 7,000 pieces, and SBDL065, limited to 3,500 pieces, with January and February 2020 release timing respectively. These earlier watches are not part of the four-model 2022 group.
Quick Recap
Rank #4
- 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
What should buyers verify?
- Check the exact reference—SPB253, SPB255, SPB257 or SLA061—rather than relying on a listing title that only says “black Seiko” or “Black Series.”
- Distinguish the 2022 SLA061 from SLA035; they have different water-resistance ratings and dimensions.
- Treat edition size as the announced production limit, not evidence of current availability, remaining stock or resale value.
- For a replacement strap, confirm fit and attachment compatibility for the exact reference. Seiko warns that a fabric strap attached to SLA061 may allow the spring bar to come off because of the watch’s structure, potentially preventing replacement.
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.
