Side-by-side comparison of specifications and features
Compare visual case presence and physical footprint on one shared wrist. Measure your top-down wrist width for a stronger result; lug-to-lug is used when the catalog has it.
Medium (6.7″)
Estimated top width: 56.7 mm
Preliminary range: 54.7–61.8 mm.
Watch A
Visual presence
BoldCase covers 69% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 4.8 mm per side.
Watch B
Visual presence
BoldCase covers 74% of your modeled wrist width.
Physical footprint
Near the edgeEstimated clearance: 3.3 mm per side.
Proportional guide only: visual presence and physical footprint do not predict comfort. Weight, thickness, caseback shape, rigid lugs, strap stiffness, wrist-bone prominence, wearing tension, bezel design, and case curvature change how a watch actually wears.
Start with the specifications that meaningfully differ. Expand the complete table for reference details and missing-data context.
| Specification | Steinhart Ocean 39 GMT Premium 500 | Steinhart Ocean One |
|---|---|---|
| Pricing | ||
| MSRPOcean 39 GMT Premium 500 is $60 less at MSRP | $690 | $750 |
| New PriceOcean One is $52 less based on the current snapshot | $1,027 | $975 |
| Used Price (Low)Ocean One is $154.5 less at the low end | $605 | $450 |
| Used Price (High) | $1,650 | $909 |
| 30-Day Trend | ↑ +7.1% | ↑ +1.8% |
| Used Price Range | $605 - $1,650 | $450 - $909 |
| Identity | ||
| Style | gmt, Diver | Diver, Tool |
| Dimensions | ||
| DiameterOcean 39 GMT Premium 500 is 3mm smaller | 39mm | 42mm |
| Thickness | 13.5mm | N/A |
| Lug to Lug | 47mm | 50mm |
| Case | ||
| Water ResistanceOcean 39 GMT Premium 500 adds 200m water resistance | 500m (diving) | 300m (diving) |
| Dial | ||
| Dial Color | Black | Black/Blue |
1 field is excluded from the differences view because one watch lacks comparable data. Use “All specs” to inspect those gaps.
Steinhart Ocean 39 GMT Premium 500 and Steinhart Ocean One can look close on a spec sheet, yet the tradeoffs that matter most are usually wrist presence versus easier fit, water-ready utility versus dressier everyday wear, gmt character versus diver versatility. They both touch the diver use case, so smaller spec differences can matter more than brand preference.
Bottom line
Fit is a real separator here — compare case width and lug-to-lug before deciding, especially if wrist comfort matters more than headline features. Choose Steinhart Ocean 39 GMT Premium 500 if you want a smaller case footprint on the wrist; choose Steinhart Ocean One if you prefer more dial presence and a larger case feel.
Choose Steinhart Ocean 39 GMT Premium 500 when
Steinhart Ocean 39 GMT Premium 500 is a better fit for smaller wrists, mechanical-watch enthusiasts, gmt styling.
Choose Steinhart Ocean One when
Steinhart Ocean One is a better fit for buyers who want more wrist presence, mechanical-watch enthusiasts, diver styling.
Movement and upkeep
Steinhart Ocean 39 GMT Premium 500: automatic movement
Steinhart Ocean One: automatic movement
Both use the same movement type, so maintenance differences are limited and fit or feature details should decide the purchase.
Size and wearability
Steinhart Ocean 39 GMT Premium 500: 39mm · L2L 47mm
Steinhart Ocean One: 42mm · L2L 50mm
Fit is a real separator here — compare case width and lug-to-lug before deciding, especially if wrist comfort matters more than headline features.
Water resistance
Steinhart Ocean 39 GMT Premium 500: 500m
Steinhart Ocean One: 300m
Water resistance is a meaningful separator here — the higher-rated option gives more flexibility for swimming or rougher daily use.
Price and value
Steinhart Ocean 39 GMT Premium 500: $690
Steinhart Ocean One: $750
These two often land in a similar price band — which usually means fit, features, and current deal quality matter more than the sticker price.
Style and use case
Steinhart Ocean 39 GMT Premium 500: gmt
Steinhart Ocean One: diver
Steinhart Ocean 39 GMT Premium 500 leans more gmt, while Steinhart Ocean One pulls toward diver use case — pick the one that matches how you will actually wear it.
Crystal and materials
Steinhart Ocean 39 GMT Premium 500: sapphire crystal · steel
Steinhart Ocean One: sapphire crystal · steel
Materials are broadly similar, so finish, fit, and price will matter more than the materials list alone.
Steinhart Ocean 39 GMT Premium 500 usually offers the lower entry price — confirm current listings because marketplace pricing can move quickly.
These two often land in a similar price band — which usually means fit, features, and current deal quality matter more than the sticker price.
Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.
Prices change often, so compare the latest listings and condition options before you buy.
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Steinhart Ocean 39 GMT Premium 500
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Steinhart Ocean One
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Steinhart Ocean 39 GMT Premium 500 — it is 47mm lug-to-lug versus 50mm, and lug-to-lug is what decides whether a watch overhangs a smaller wrist.
Steinhart Ocean 39 GMT Premium 500 — it is rated 500m versus 300m. Both are in the same broad bracket, so treat this as a tiebreaker rather than a deciding factor.
Steinhart Ocean 39 GMT Premium 500 is the value pick at roughly $60 less. Pay more only if a specific difference above matters to you — otherwise the cheaper one is the smarter buy. Confirm live listings, since marketplace pricing moves.
Evidence & Method
This page currently relies on normalized catalog fields and calculated differences. No external reviewer observation is used in its verdict.
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