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The Seiko Prospex Marinemaster SJE117 and SJE119 are 1965-inspired mechanical divers with the same listed case dimensions, Caliber 6L37 movement, and 200 m diver’s water resistance. Seiko’s reviewed sources document the SJE119’s navy dial, but do not establish a full official color comparison with the SJE117. The choice is best made by checking the current regional listings, preferred dial, dimensions, and price rather than assuming a technical difference.
What Seiko launched
Seiko’s global collection page lists the SJE117 and SJE119 as Marinemaster 1965 Heritage Diver’s Watch references available from July 2024. The collection belongs to a design line inspired by the 1965 62MAS, which Seiko describes as its first diver’s watch and Japan’s first diver’s watch. Seiko’s 2023 launch release provides context for the line, but describes earlier launch models and should not be taken as the release history or current pricing for these two references.
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Seiko says the slimline Caliber 6L37 and reconsidered case structure make this its thinnest mechanical diver’s watch currently, at 12.3 mm, while allowing a view of the movement through the case back. That is Seiko’s description of the design, not an independent comparative assessment.
SJE117 vs. SJE119: what is documented?
| Model | Documented details | What to verify |
|---|---|---|
| SJE117 | Listed by Seiko as a Marinemaster 1965 Heritage Diver’s Watch with Caliber 6L37. | Consult the current listing for its dial appearance and regional price; the reviewed sources do not provide a complete written side-by-side color description. |
| SJE119 | Seiko Boutique UK describes a blue-water navy dial with horizontal texture and rectangular LumiBrite-coated indices. | Price and availability depend on the region and date of the listing. |
The official regional product pages reviewed list the same main mechanical and dimensional specifications for both references. The dossier does not include independent legibility or performance testing, so it does not establish a technical winner. See Seiko’s global Marinemaster collection page and the official SJE117 specifications and SJE119 specifications.
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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
Dimensions and wearability
Seiko’s regional product pages list these shared dimensions:
| Specification | SJE117 and SJE119 |
|---|---|
| Case diameter | 39.5 mm |
| Thickness | 12.3 mm |
| Lug-to-lug | 47.2 mm |
| Lug spacing | 20 mm |
These figures describe a relatively compact case for a mechanical diver, but they cannot predict how a watch will fit a particular wrist. The reviewed sources do not provide a hands-on fit test, so try the watch on if possible and consider wrist shape and bracelet sizing.
Seiko lists a box-shaped sapphire crystal with inner anti-reflective coating. The company’s launch release describes the design as balancing a slim profile with water and shock resistance. Seiko Boutique UK describes the SJE119’s mirror-finished lugs; do not assume every detail of that regional product description applies identically to every reference without checking its listing.
Bracelet and clasp
Seiko’s regional specifications list a stainless-steel bracelet with a three-fold clasp, secure lock, push-button release, and extender. They do not establish universal comfort or long-term durability, and the reviewed sources do not verify a tool-less micro-adjustment feature or support a comparative clasp assessment. Check the current reference-specific listing for the configuration in your market.
Specifications at a glance
| Component | Seiko-listed specification for the references reviewed |
|---|---|
| Collection | Prospex Marinemaster 1965 Heritage Diver’s Watch |
| Case | Stainless steel |
| Crystal | Box-shaped sapphire with inner anti-reflective coating |
| Water resistance | 200 m / 660 ft diver’s |
| Bezel | Unidirectional rotating |
| Crown | Screw-down |
| Case back | Screw case back; see-through |
| Bracelet | Stainless steel; three-fold clasp with secure lock, push-button release, and extender |
| SJE119 listed weight | 155 g |
Specifications are from Seiko Watch Corporation’s regional SJE117 product page and SJE119 product page. The SJE119 page lists a 155 g weight; the retrieved SJE117 content does not show a weight.
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)
Seiko’s Caliber 6L37
Both references use Seiko’s automatic/manual-winding Caliber 6L37. Seiko’s regional pages list these specifications:
- Approximately 45 hours of power reserve
- 26 jewels
- Stated accuracy of +15 to −10 seconds per day
The accuracy figure is Seiko’s published specification, not a measurement of an individual watch. No independent timing test is included in the research, and the sources reviewed do not describe these references as chronometer-certified. Buyers should weigh the stated accuracy and reserve alongside the case size, design, price, and service access.
Price and buying considerations
Seiko Boutique UK listed the SJE119 at £2,930 when researched on 2026-10-07. This is a regional listing price, not a universal price or a guarantee of availability. Seiko’s 2023 launch release gave €3,400 recommended retail prices for its initial creations and said prices were subject to change; that historical launch price should not be treated as the current price of the SJE117 or SJE119. Check the current official listing and authorized retailer in your market before buying.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchThe 20 mm lug spacing may make strap options worth exploring, but it does not establish that every 20 mm strap will fit or is suitable for diving. Check compatibility and water-use suitability with the strap maker or an authorized retailer.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which one should you buy?
- Compare the current listings. Confirm the exact reference, dial appearance, local price, stock, and warranty terms.
- Compare the shared specifications. Seiko’s reviewed pages list the same core dimensions, movement, and water-resistance rating for both.
- Choose by verified dial preference and fit. The SJE119’s navy dial is described by Seiko Boutique UK; inspect the current SJE117 listing rather than relying on an unsupported color description.
Neither reference can be recommended as a performance winner on the available evidence: the research contains no independent timing, water, lume, or wear tests.
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
Verdict
The SJE117 and SJE119 pair a 1965-inspired design with a 39.5 mm case, 12.3 mm thickness, 200 m diver’s rating, and Seiko’s slimline Caliber 6L37. Their main listed technical specifications are shared. The SJE119’s navy dial is documented by Seiko Boutique UK; confirm the SJE117’s appearance and each model’s current regional price through official listings before deciding.
FAQ
What is the difference between the Seiko Marinemaster SJE117 and SJE119?
The reviewed official pages list the same main dimensions and movement specifications. Seiko Boutique UK describes the SJE119 as a navy-dial model, but the research does not establish a complete written official color comparison with the SJE117.
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Seiko’s regional specifications list both at 39.5 mm in diameter, 12.3 mm thick, and 47.2 mm lug-to-lug, with 20 mm lug spacing.
Are the SJE117 and SJE119 chronometer-certified?
The sources reviewed do not describe them as chronometer-certified. Seiko lists an accuracy specification of +15 to −10 seconds per day; this is not an independent timing result.
What movement is inside the SJE117 and SJE119?
Both use Seiko Caliber 6L37, an automatic/manual-winding movement. Seiko lists approximately 45 hours of power reserve and 26 jewels.
How much do the SJE117 and SJE119 cost?
Prices vary by region and date. Seiko Boutique UK listed the SJE119 at £2,930 when researched on 2026-10-07; check current local listings for the price and availability of either reference.
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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.
