The Seiko Prospex SSC673 is a solar-powered chronograph with a 200 m diver’s water-resistance rating and a silicone band. Seiko specifies a V175 movement, six months of operation on a full charge and timing up to 60 minutes. The available official pages establish those specifications, but do not establish hands-on testing, so this is a specification-based review rather than a wear or performance test.
What watch is the SSC673?
Seiko identifies the model as the Prospex SSC673 on its regional product page. Seiko’s official Philippines store lists it as the Prospex SSC673P1. Those names refer to the same model family in the cited official listings; check the full suffix and market version when shopping.
Movement, charging and timekeeping
Seiko specifies its V175 solar movement, with stated accuracy of ±15 seconds per month and approximately six months of operation when fully charged. These are manufacturer specifications, not results measured in a test of this particular watch. The page also lists overcharge prevention. Seiko does not state how quickly this model charges under particular lighting conditions, so the six-month figure should not be read as a guarantee of performance in every wearer’s routine.
Chronograph and other functions
The chronograph measures up to 60 minutes in 1/5-second increments. Seiko also lists a 24-hour hand and date display. This describes the published functions; the available sources do not document a hands-on assessment of the controls or dial legibility.
#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
Case, crystal, band and water resistance
Seiko’s regional product page lists a stainless-steel case with hard coating, Hardlex crystal, silicone band, LumiBrite on the hands and indexes, and 13.8 mm thickness. It gives the lug distance as 20 mm. Its listed water resistance is 200 m / 660 ft diver’s water resistance. The rating is Seiko’s specification; it is not an independent water-resistance test.
The official regional pages differ slightly on diameter: Seiko’s regional product page says 43.5 mm, while the Philippines store lists 43 mm. Both give 13.8 mm thickness and the same 200 m / 660 ft water-resistance rating. Confirm the measurement for the market version you intend to buy rather than assuming the difference is a rounding error.
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
- 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
Will a 20 mm strap fit?
Seiko lists 20 mm between the lugs, which gives a useful starting point when looking for a replacement strap. That measurement does not confirm that every 20 mm strap will attach correctly: check the strap’s end shape and attachment compatibility with the SSC673 before ordering.
Is the Seiko SSC673 worth buying?
The published specification suits a buyer seeking a solar chronograph with a substantial water-resistance rating, a silicone band and a defined 60-minute timing function. Whether it is comfortable, easy to read on the wrist, accurate in daily use or good value against alternatives cannot be established from the official specification pages alone. There is no substantiated comparison here with another watch, so base a purchase decision on the exact regional listing, fit, price and warranty you can confirm.
Free tools Windows power users keep installed
One-click scans. No signup required.
Rank #3
- AUTOMATIC MOVEMENT: Seiko 4R35 automatic movement includes manual winding, 23 jewels, 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.
- STAINLESS-STEEL CASE: 41.7mm stainless-steel case measures 12.3mm thick with a 49.5mm lug-to-lug distance and 20mm lug width.
- HARDLEX CRYSTAL: Durable Hardlex crystal protects the dial, while LumiBrite on the hands, indexes, and bezel improves low-light visibility.
- DIVER-READY DESIGN: Unidirectional rotating bezel and three-fold clasp with secure lock, push-button release, and extender provide practical functionality.
Availability, price and warranty vary by market
At the time represented by the crawled result, Seiko’s official Philippines store displayed ₱20,050, marked the watch “Sold Out,” and stated a three-year guarantee for purchases through that store. These are Philippines storefront details, not a global price or a general Seiko warranty promise; check the current official listing and local terms. For a manual, Seiko Australia’s manual search portal lets users search by model number, caliber or case number; the SSC673 manual itself is not confirmed here.
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
- STUNNING BLUE DIAL: this rugged sports watch features a beautiful Manta Ray-patterned blue dial, 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: SRPF77 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 deep blue silicone 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
Seiko SSC673 specifications
| Specification | Published detail |
|---|---|
| Model name | Prospex SSC673; official Philippines store listing: SSC673P1 (Seiko regional product page and Philippines store) |
| Movement | V175 solar (Seiko regional product page and Philippines store) |
| Stated accuracy | ±15 seconds per month (Seiko specification; not independently measured) |
| Operation when fully charged | Approximately six months (Seiko specification) |
| Chronograph | Up to 60 minutes in 1/5-second increments (Seiko regional product page and Philippines store) |
| Other functions | 24-hour hand, date display and overcharge prevention (Seiko regional product page and Philippines store) |
| Case diameter | 43.5 mm on Seiko’s regional product page; 43 mm on the official Philippines store page |
| Thickness | 13.8 mm (Seiko regional product page and Philippines store) |
| Case material and finish | Stainless steel with hard coating (Seiko regional product page) |
| Crystal | Hardlex (Seiko regional product page and Philippines store) |
| Band and lug distance | Silicone band; 20 mm between lugs (Seiko regional product page) |
| Luminous material | LumiBrite on hands and indexes (Seiko regional product page) |
| Water resistance | 200 m / 660 ft diver’s water resistance (Seiko regional product page and Philippines store) |
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.
