

🌊 Own the deep, master the time — the solar GMT diver for the modern explorer.
The Seiko SFK003 Prospex Solar Sumo GMT is a robust automatic dive watch featuring a solar-powered Caliber 5K65 movement with ±15 seconds monthly accuracy. It boasts a 200-meter ISO-certified water resistance, scratch-resistant sapphire crystal with anti-reflective coating, and a unidirectional rotating bezel. Designed with a striking green sunray dial and luminous markers, it offers a 9-month power reserve and a secure tri-fold clasp, making it the perfect companion for professionals who demand precision, durability, and style both underwater and on land.
















| ASIN | B0BTTQF6J5 |
| Best Sellers Rank | #434,391 in Fashion ( See Top 100 in Fashion ) #10,981 in Men's Wrist Watches |
| Customer reviews | 4.8 4.8 out of 5 stars (17) |
| Date First Available | 1 January 2024 |
| Department | mens |
| Item model number | SFK003 |
| Manufacturer | Seiko |
| Package Dimensions | 12.8 x 9.5 x 8.79 cm; 322 g |
J**N
A green watch in multiple ways. Solar quartz gives maximum accuracy with zero battery changes. Subtlety textured green dial surrounded by a green chapter ring and green bezel gives a great background for the orange pop of the GMT hand. The two tone chapter ring allows you to track the daylight hours for the GMT hand. This is a Flyer GMT and not a Caller GMT, so it is perfect for going diving on vacations far away from your home time zone. The sumo case is large and weighty, but as with most SEIKOs, it wears smaller and comfortably on the wrist. The bracelet’s center band sits slightly raised to give some dimensional interest. I would have expected a case this large to have a 22mm band, but this has a 20mm lug width. Looks good and still in proportion to show off the brushed and polished finishing on the stainless steel case. The date at 3 o’clock and the crown at 4 o’clock positions give it a distinguishing look. I love that it has a sapphire crystal for scratch resistance. The Prospex lines are well made, I own 5 (Turtle, Sumo, Samurai, Speedtimer, and PADI SNE549). The only knock on this watch is the aluminum bezel instead of a ceramic bezel upgrade. Some might have issue with the dive bezel marking instead of the 24 hour GMT bezel, but I respect the design choice that this is a dive watch first and foremost.
J**H
I like the watch, stupid accurate and light on the wrist for being a bigger case. I just have issues with the (cheapness) of the band. The lock mechanism comes undone easily and therefore has to be re clasped very often.
A**R
I really enjoy the 2 tone color .This solar Seiko watch is gonna last me a lifetime.I absolutely love it! The weight is perfect and the size isn’t to big.5 stars!
R**L
Have a good jeweller fit and show you all the functions of your watch! If your a stone be a diamond and if your a watch be Seiko 😎
J**Y
Love this watch ! Have very expensive watches which need constant cleaning and never keep accurate time like this watch The best watch I have.
Trustpilot
3 weeks ago
1 day ago