The Seiko Prospex Sumo PADI Edition SPB325J1 is the PADI-dial model in Seiko’s Sumo family, listed with an automatic 6R35 movement, a 45.0 mm stainless-steel case and a silicone strap. Seiko’s brochure specifies a “200M Diver” rating, but does not give a price. The current price and country-specific availability could not be verified from the official product pages checked.
What is the Seiko SPB325J1?
SPB325J1 is one of three Prospex Sumo references shown together in Seiko’s brochure: SPB321J1, SPB323J1 and SPB325J1. The brochure presents SPB325J1 as the PADI edition, distinguished by the PADI name and globe-shaped emblem on its dial. It describes the other two dials as blue and grey with an ocean-motion texture. Seiko’s Prospex Sumo brochure
Seiko-published specifications
| Specification | SPB325J1 |
|---|---|
| Movement | Automatic | 6R35 |
| Case | Stainless steel with super-hard coating |
| Case diameter | 45.0 mm |
| Strap | Silicone |
| Crystal | Sapphire crystal with anti-reflective coating on the inner surface |
| Bezel | Unidirectional rotating bezel |
| Case back | Screw case back |
| Crown | Screw-down crown |
| Water-resistance wording | “200M Diver” |
These details are from the SPB325J1 model block in Seiko’s brochure. The brochure does not establish additional real-world performance results, such as measured accuracy, bezel feel, comfort or durability.
Why is it called the Sumo?
Seiko says fans gave the watch the Sumo name not long after its first appearance in 2007. The brochure offers two possible explanations: its muscular appearance, or a bezel shape resembling the dohyo, the ring used for sumo. Those are Seiko’s suggested explanations, not a definitive account of the nickname’s origin. Seiko’s Prospex Sumo brochure
#1 Best Overall
- Automatic winding type with manual winding mechanism
- Cal. 6R35 Movement, 24 Jewels, Made in Japan
- Power reserve: approximately 70 hours
- Second-hand-halt mechanism (Hacking)
- 120 clicks Unidirectional Bezel
What makes this the PADI edition?
The SPB325J1’s identifying dial treatment is the PADI name and globe-shaped emblem, as presented in Seiko’s brochure. Seiko also describes PADI as “the world’s largest ocean exploration and diver organization.” The brochure gives figures of 6,600 dive centers and resorts and more than 128,000 professional members worldwide; it does not state when those counts were current, so they should not be read as present-day totals.
What is the SPB325J1 price?
A current price could not be verified. Seiko’s brochure does not list one, and the official Seiko USA SPB325J1 page and Seiko Global SPB325J1 page returned 404 Page Not Found when checked. That does not establish that the reference is discontinued or unavailable; it means those pages do not confirm a current price or stock status. Any price should be checked against a dated source for the relevant country and currency.
Rank #2
- 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
- LUMIBRITE DISPLAY: this men's dive watch features a highly-legible display with LumiBrite hands and markers
- STAINLESS STEEL: features a durable stainless steel watch case and bracelet, unique case shape resembling teeth, and PADI red and blue colors on its elapsed timing bezel
- 4R36 CALIBER: equipped with the reliable caliber 4R36 automatic movement, this accurate men's watch keeps precise time
Strap detail to keep in mind
Seiko’s collection copy discusses a ceramic bezel and super-hard coating for the case and bracelet in the new generation, and mentions a redesigned three-row bracelet and clasp. The SPB325J1’s individual specification block lists a silicone strap, not a bracelet. Bracelet-specific features therefore should not be attributed to this reference on the basis of that general collection text.
Quick Recap
Best Value
- PADI SPECIAL EDITION: Men's Prospex Sea diver featuring a PADI Special Edition design with a stainless-steel case and ceramic bezel display.
- AUTOMATIC MOVEMENT: Seiko 4R36 automatic movement offers manual winding, 24 jewels, day/date display, stop-second function, and approximately 41 hours of power reserve.
- 200M DIVER'S WATER RESISTANCE: Rated to 200 meters / 660 feet for diving, with a screw-down crown and screw case back.
- SAPPHIRE CRYSTAL: Sapphire crystal with magnifier and inner anti-reflective coating provides durable dial protection and improved readability.
- DIVER-READY FEATURES: 45mm stainless-steel case, unidirectional rotating bezel, LumiBrite hands, indexes and bezel, plus a secure three-fold clasp with extender.
Rank #4
- 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
- LUMIBRITE DISPLAY: this men's dive watch features a highly-legible display with LumiBrite hands and markers
- STAINLESS STEEL: this diving watch for men features a stainless steel watch case and bracelet, a uni-directional rotating elapsed timing bezel, and a bold blue dial evoking signature PADI colors
- 4R36 CALIBER: equipped with the reliable caliber 4R36 automatic movement, this accurate men's watch keeps precise time
Rank #3
- PADI SPECIAL EDITION: Men's Prospex Sea diver watch features PADI Special Edition details and a durable stainless-steel case.
- AUTOMATIC MOVEMENT: Seiko 4R35 automatic movement with manual winding, 23 jewels, stop-second function, date display, and approximately 41-hour power reserve.
- 200M DIVER'S WATCH: 200m/660ft diver's water resistance, screw-down crown, and screw case back support underwater use.
- SAPPHIRE CRYSTAL: Sapphire crystal with magnifier and inner anti-reflective coating provides enhanced clarity and scratch resistance.
- CERAMIC BEZEL & SILICONE BAND: Stainless-steel bezel with ceramic display and unidirectional rotation pairs with a flexible silicone band.
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.
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