Seiko Prospex Alpinist GMT
SPB379
- Case
- 39.5mm
- MSRP
- $1,150
- Movement
- Automatic
- Reserve
- 72h
VS
Building 1v1 comparison
Building 1v1 comparison
1v1 Watch Comparison
A focused side-by-side page for specs, fit, movement details, review notes, and enthusiast context.
SPB379
799.10.351.10
Pair Review
Built from the saved specs and wearability notes for these two watches, then weighed against enthusiast priorities like fit, movement quality, practicality, finishing, value, and collector appeal.
Where it wins
Buyers who want GMT functionality and longer power reserve
Where it wins
Collectors drawn to vintage dive-watch heritage
The Seiko uses the automatic 6R54 with 24 jewels and a 72-hour power reserve, plus GMT functionality, which gives it the more versatile movement package for travel and weekend wear. The DOXA uses the automatic Sellita SW200-1 with 26 jewels, 4 Hz / 28,800 vph, and a 38-hour power reserve; it is a more conventional three-hand diver movement with date only. The Seiko has the technical edge because it adds true GMT usefulness and significantly more reserve, while the DOXA’s movement is the more straightforward, established option and is noted as reliable and easy to service. Performance/accuracy claims are not listed for either watch, so no direct comparison can be made there. Winner: Seiko Prospex Alpinist GMT SPB379
The Seiko is the smaller watch at 39.5mm wide, 13.6mm thick, and 46.4mm lug-to-lug, with a listed weight of 95g, so it should wear lighter and more compact on a broad range of wrists. The DOXA measures 42mm by 13.8mm with a 46mm lug-to-lug and 19mm lug width, so it will wear a bit wider and more present on the wrist, even though the lug-to-lug is nearly the same. The Seiko’s wearability summary emphasizes that its compact dimensions keep it approachable and wearable on a wide range of wrists. The DOXA’s wearability summary describes it as slimmer, lighter, and less aggressive than the larger SUB 300T, making it one of the easiest entry points into the DOXA lineup. On paper, the Seiko is the more universally easy-fitting watch, while the DOXA offers more visual presence without becoming long or unwieldy. Winner: Seiko Prospex Alpinist GMT SPB379
The Seiko offers a black dial with Arabic numerals/indexes, lume, anti-reflective sapphire crystal, 200m water resistance, a screw-down crown, date, GMT, and a rotating bezel. Its leather strap makes it versatile and comfortable, though the wear notes suggest many enthusiasts may want to swap it for something more robust or sport-oriented. The layered bezel setup adds functionality and identity, but also makes the dial busier. The DOXA brings an orange dial, Super-LumiNova, scratch-resistant sapphire with anti-reflective coating, 200m water resistance, a screw-down crown, date, and a unidirectional rotating bezel with a sapphire or stainless steel inlay. Its beads-of-rice stainless steel bracelet and vintage dive styling give it stronger everyday presence and classic diver charm, and its legibility and heritage-driven design are major strengths. The Seiko is more travel-oriented thanks to GMT; the DOXA is more naturally suited to dive-watch daily use and visual punch. Winner: Tie
The Seiko has the lower MSRP at $1,150 versus $1,290 for the DOXA, so it is the easier value proposition on price alone. The Seiko also offers a more complex feature set for the money, with GMT and a 72-hour reserve, while the DOXA counters with stronger heritage signals in the dive-watch world and a more distinctive vintage identity. Ownership practicality favors the Seiko for travelers and the DOXA for buyers who want a straightforward diver with a well-known movement architecture; however, the DOXA is specifically noted as reliable and easy to service. Collector appeal depends on taste: the Seiko feels like a modern interpretation of the Alpinist with added utility, while the DOXA carries deeper historical resonance in the classic orange-dial dive-watch tradition. Overall, the Seiko delivers slightly more functionality per dollar, while the DOXA offers more heritage character. Winner: Seiko Prospex Alpinist GMT SPB379
Compared
SPB379
799.10.351.10