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Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →The Seiko Prospex SRPL11, SRPL13 and SRPL15 share the same movement, dimensions and stated dive-watch specifications. The differences are color, case finish, strap and price: SRPL11 has a red dial and steel bracelet; SRPL13 has a black dial and steel bracelet; SRPL15 pairs a black dial with black hard coating and a silicone strap. Seiko USA lists the SRPL11 and SRPL13 at $595 each and the SRPL15 at $575.
How the three Seiko Prospex models compare
| Model | Dial and bezel | Case finish | Bracelet or strap | Seiko-listed U.S. price |
|---|---|---|---|---|
| SRPL11 | Red | Stainless steel | Stainless-steel bracelet | $595 |
| SRPL13 | Black | Stainless steel | Stainless-steel bracelet | $595 |
| SRPL15 | Black | Stainless steel with black hard coating | Black silicone strap | $575 |
Prices are those listed on Seiko’s U.S. product and lineup pages in 2026; availability and displayed prices may change. Check Seiko’s SRPL11 page, SRPL13 page, and SRPL15 page for current listings.
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What the SRPL11, SRPL13 and SRPL15 have in common
All three are Prospex Sea automatic divers with Seiko’s 4R35 movement, Hardlex crystal, date display and LumiBrite hands and markers. Each measures 41.7 mm in diameter, 12.3 mm thick and 49.5 mm from lug to lug, with a 20 mm lug width. Seiko lists water resistance at 200 m / 660 ft, along with a screw-down crown and caseback and a unidirectional rotating bezel.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteThe 4R35 has 23 jewels and beats at 21,600 vibrations per hour. Seiko specifies an approximately 41-hour power reserve and says the movement can be wound manually or automatically. These are published specifications, not independent test results.
#1 Best Overall
- 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
Which one should you choose?
Choose the SRPL11 for a red dial
The SRPL11 is the most visibly distinctive option in the trio: its red dial contrasts with the conventional stainless-steel case and bracelet. Its listed price is the same as the black-dial SRPL13.
Choose the SRPL13 for a black dial and steel bracelet
The SRPL13 keeps the standard stainless-steel case and bracelet but uses a black dial. It is the straightforward pick if you want a more neutral color without choosing the coated case and silicone strap of the SRPL15.
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
Choose the SRPL15 for black coating and silicone
The SRPL15 is the only model here with black hard coating and a black silicone strap. Its U.S. listed price is $20 lower than the SRPL11 and SRPL13. That difference buys a different finish and strap, not a different movement or smaller case.
Are the SRPL11 and SRPL13 the same size?
Yes. Seiko lists the same 41.7 mm diameter, 12.3 mm thickness, 49.5 mm lug-to-lug measurement and 20 mm lug width for both. Those dimensions also match the SRPL15, so the listed size is not a differentiator among the three.
Rank #3
- 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
Is the SRPL15 worth paying for?
The SRPL15 is actually listed for less than the two bracelet models: $575 versus $595 on Seiko’s U.S. pages. Whether it is the better fit depends on whether you prefer its black-coated case and silicone strap over a stainless-steel bracelet. The shared specifications do not establish that one is more capable or performs better than another.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the published dive-watch specifications mean
Seiko says the steel SRPL11 and SRPL13 follow ISO standards for scuba diving and specifies a secure screw-down crown and caseback. For those bracelet versions, Seiko also lists a tri-fold push-button release clasp with secure lock and extender. The SRPL15 product page likewise describes the coated steel watch as following ISO standards for scuba diving and specifies a screw-down crown and caseback; its black silicone strap replaces the bracelet. These are manufacturer descriptions and specifications, not a substitute for checking fit, condition and operating instructions before diving.
Quick Recap
Rank #4
- 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.
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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