Seiko Prospex 1968 Diver Modern Re-Interpretation GMT
SPB381
- Case
- 42mm
- MSRP
- $1,500
- 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.
SPB381
840.10.351.10
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 a more versatile daily sports watch with GMT functionality and a 72-hour reserve
Where it wins
Enthusiasts who want a historically significant, highly distinctive dive watch with maximum underwater-tool credibility
The DOXA uses the ETA 2824-2 automatic caliber, a well-known, workmanlike movement with a 38-hour power reserve and a 4 Hz / 28,800 vph beat rate. The Seiko uses the 6R54 automatic caliber with a much longer 72-hour power reserve and GMT functionality, which is a major real-world advantage for weekend downtime and travel. On the data provided, neither watch has an accuracy claim or certification listed, so performance and regulation can’t be quantified here. The DOXA’s movement is more traditional and straightforward; the Seiko is technically more capable because it adds GMT utility and endurance. Winner: Seiko Prospex 1968 Diver Modern Re-Interpretation GMT SPB381
The DOXA measures 42.5 mm across, 13.65 mm thick, with a short 44.5 mm lug-to-lug and a listed weight of 194 g. Its wearability note says it wears smaller and more balanced than the specs suggest thanks to the compact dial opening and short lugs, though it remains thick, heavy, and very present on wrist. The Seiko is 42 mm wide, 12.9 mm thick, and has a longer 48.6 mm lug-to-lug; weight is not yet listed. Its wearability note emphasizes that it feels more comfortable than many GMT divers because of the restrained thickness and balanced case proportions. For smaller wrists, the DOXA’s shorter lug-to-lug is a clear advantage; for those prioritizing thinner profile and a slightly more conventional daily fit, the Seiko has the edge. Winner: Tie
The DOXA’s orange dial, Super-LumiNova, sapphire crystal with anti-reflective coating, beads-of-rice bracelet, and no-decompression dive bezel create a highly legible and highly specialized vintage-dive aesthetic. Its 1200 m water resistance, screw-down crown, helium escape valve, and dive extension-style wearability make it a formidable true tool watch, but the large clasp and bold styling make it less discreet for everyday use. The Seiko offers a green dial, LumiBrite markers, anti-reflective sapphire crystal, ceramic bezel, 200 m water resistance, a security-lock folding clasp, and GMT functionality, making it more versatile for daily wear, travel, and general sports use. Its wearability note also highlights a more refined bracelet and a balanced, comfortable feel. For pure underwater capability, DOXA dominates; for all-around practicality, the Seiko is easier to live with. Winner: Seiko Prospex 1968 Diver Modern Re-Interpretation GMT SPB381
The Seiko has the lower MSRP at USD 1,500 versus the DOXA at USD 2,190, while also adding GMT functionality and a 72-hour power reserve. The DOXA offers exceptional heritage signals: it is tied to the original SUB lineage, professional diving history, and the first commercially available dive watch with a helium escape valve in the original SUB 300T Conquistador, all of which strengthen enthusiast appeal. The Seiko carries respectable Prospex dive heritage and a modern reinterpretation of a 1968 design, but the data frames it more as a strong contemporary execution than a historically singular icon. On practicality, the Seiko’s longer reserve and more versatile complication reduce friction in ownership, while the DOXA’s sheer depth rating and distinctive identity give it stronger collector character. Winner: Tie
Compared
SPB381
840.10.351.10