Watch A
Certina DS PH200M
Round · 39mm
Visual presence
BoldCase covers 69% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 5.9 mm per side.
Case: 39mmBand width est.: 20mm
Open this size in the full fit chart →Certina DS PH200M vs Steinhart Ocean One
Side-by-side comparison of specifications and features
Key Differences
Best Value
Certina DS PH200M (39mm)
Starting from $625
Best Water Resistance
Steinhart Ocean One (42mm)
300m (2x more)
Biggest Price Drop
Steinhart Ocean One (42mm)
-6.3% in 30 days
See Both Watches on Your Wrist
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 B
Steinhart Ocean One
Round · 42mm · 50mm lug-to-lug
Visual presence
BoldCase covers 74% of your modeled wrist width.
Physical footprint
Near the edgeEstimated clearance: 3.3 mm per side.
Case: 42mmLug-to-lug: 50mmBand width est.: 20mm
Open this size in the full fit chart →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.
Price Comparison
Certina DS PH200M
MSRP
$745
Used
$486
Steinhart Ocean One
MSRP
$750
New
$991
Used
$450
MSRP New (Amazon) Used (eBay)
Side-by-Side Specs
Start with the specifications that meaningfully differ. Expand the complete table for reference details and missing-data context.
| Specification | Certina DS PH200M | Steinhart Ocean One |
|---|---|---|
| Pricing | ||
| MSRPDS PH200M is $5 less at MSRP | $745 | $750 |
| Used Price (Low)Ocean One is $35.5 less at the low end | $486 | $450 |
| Used Price (High) | $718 | $909 |
| 30-Day Trend | 0.0% | ↓ -6.3% |
| Used Price Range | $486 - $718 | $450 - $909 |
| Identity | ||
| Style | Diver, Vintage, Tool | Diver, Tool |
| Dimensions | ||
| DiameterDS PH200M is 3mm smaller | 39mm | 42mm |
| Case | ||
| Water ResistanceOcean One adds 100m water resistance | 200m (diving) | 300m (diving) |
| Dial | ||
| Dial Color | Black | Black/Blue |
6 specifications both watches share
ThicknessN/A
MovementAutomatic
Case MaterialStainless Steel
CrystalSapphire Crystal
BezelUnidirectional rotating
Luminous✓ Included
2 fields are excluded from the differences view because one watch lacks comparable data. Use “All specs” to inspect those gaps.
Which Should You Buy?
Certina DS PH200M and Steinhart Ocean One can overlap on price or use case, but the buying decision usually comes down to wrist presence versus easier fit, water-ready utility versus dressier everyday wear. They both touch the diver and tool 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 Certina DS PH200M 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 Certina DS PH200M when
Certina DS PH200M is a better fit for smaller wrists, mechanical-watch enthusiasts, diver 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.
Key Differences
Movement and upkeep
Certina DS PH200M: 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
Certina DS PH200M: 39mm
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
Certina DS PH200M: 200m
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
Certina DS PH200M: $625
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
Certina DS PH200M: diver
Steinhart Ocean One: diver
Both lean into a similar diver use case — the choice is more about fit, features, and price than category.
Crystal and materials
Certina DS PH200M: 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.
Choose Certina DS PH200M 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.
- Swimming, beach use, or tougher daily wear is part of the plan.
Price and Value Notes
Certina DS PH200M 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.
Where to Check Deals
Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.
Check current deals on Amazon and eBay
Prices change often, so compare the latest listings and condition options before you buy.
WatchCompared may earn a commission from qualifying purchases through affiliate links. This does not change your price.
Certina DS PH200M
Check Price on AmazonOpens in new tab · Price may vary
Check Price on eBayFrom $625 · New & used listings
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Steinhart Ocean One
Check Price on AmazonOpens in new tab · Price may vary
Check Price on eBayFrom $687 · New & used listings
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Comparison FAQ
Which one is better for smaller wrists?
Certina DS PH200M — it is 39mm wide versus 42mm.
Which is better for swimming or rough daily wear?
Steinhart Ocean One — it is rated 300m versus 200m. Both are in the same broad bracket, so treat this as a tiebreaker rather than a deciding factor.
Is the more expensive one worth it?
Certina DS PH200M is the value pick at roughly $125 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
How we compared these watches
No WatchCompared hands-on test claimed
- • Catalog specifications are normalized into the same units before differences are calculated.
- • The verdict uses only populated fields and the source-backed observations listed here.
- • Missing evidence reduces the depth of the conclusion instead of being filled with assumptions.
This page currently relies on normalized catalog fields and calculated differences. No external reviewer observation is used in its verdict.
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Certina DS PH200M
Check Price on AmazonOpens in new tab · Price may vary
Check Price on eBayFrom $625 · New & used listings
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Steinhart Ocean One
Check Price on AmazonOpens in new tab · Price may vary
Check Price on eBayFrom $687 · New & used listings
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
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