Omega Aqua Terra 150M 38mm Black Lacquer
220.10.38.20.01.004
- Case
- 38mm
- MSRP
- $7,400
- Movement
- Automatic
- Reserve
- 55h
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.
220.10.38.20.01.004
SBGA413
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
Wins for buyers who prefer its overall mix of specs, fit, ownership appeal, and value.
Where it wins
Collectors drawn to Spring Drive, titanium comfort, and distinctive movement character
Omega uses the automatic Caliber 8800 with a 55-hour power reserve, METAS certification, and 15,000-gauss magnetic resistance, which gives it the stronger technical specification set for modern daily use. Grand Seiko’s Spring Drive Caliber 9R65 offers a longer 72-hour power reserve and a published accuracy claim of ±15 seconds per month (±1 second per day), while also delivering the distinctive glide-seconds experience Spring Drive is known for. In practical terms, Omega looks more like the harder-use engineering choice, while Grand Seiko offers the more unusual and horologically compelling movement architecture. Serviceability and long-term reliability are not specifically detailed in the data, so no judgment there beyond what the listed specs imply. Winner: Omega Aqua Terra 38mm Black Lacquer
The Omega is smaller and shorter on the wrist at 38mm in diameter, 12.26mm thick, 45.1mm lug-to-lug, and 133g, so it should feel more compact and broadly wearable on medium and smaller wrists. The Grand Seiko is 40mm by 12.8mm with a 47mm lug-to-lug, but weighs only 102g thanks to high-intensity titanium, so it will feel lighter and less fatiguing despite the larger footprint. The pre-existing wearability notes support that the Aqua Terra is especially balanced and versatile for medium or smaller wrists, while the Shunbun wears comfortably and has more wrist presence without bulk. If you want the more refined compact fit, Omega wins; if you want the lighter-feeling watch with a bit more presence, Grand Seiko is excellent. Winner: Omega Aqua Terra 38mm Black Lacquer
For daily wear practicality, the Omega has the edge in outright utility: 150m water resistance, screw-in crown, anti-reflective sapphire on both sides, white Super-LumiNova, and a date display make it the more complete everyday sports watch. Its black lacquer dial is also highly versatile and more conservative, which helps with legibility in a wide range of settings. The Grand Seiko counters with a beautiful soft pink textured dial, box sapphire crystal, and lightweight titanium case and bracelet, but it has 100m water resistance, no lume listed, and no date display, making it a little less tool-like and less immediately practical. The Shunbun is still very capable for regular wear and has the stronger emotional and aesthetic payoff, but the Omega is easier to deploy as a true one-watch solution. Winner: Omega Aqua Terra 38mm Black Lacquer
The Grand Seiko has the lower MSRP at $7,200 versus $7,400 for the Omega, though the difference is modest. On the value equation, Omega brings METAS certification, extreme magnetic resistance, and 150m water resistance, while Grand Seiko brings Spring Drive, a longer power reserve, titanium construction, and especially distinctive finishing and dial artistry. Brand and heritage signals in the data favor both differently: Omega leans into Seamaster maritime practicality and technical modernity, while Grand Seiko leans into craftsmanship and the recognizable Shunbun identity. For ownership practicality, the Omega appears slightly more straightforward as a robust daily sports watch, while the Grand Seiko may offer more collector appeal for enthusiasts drawn to movement character and dial expression. Winner: Tie
Compared
220.10.38.20.01.004
SBGA413