Ratio FreeDiver 200M AutomaticvsSinn U18

Ref. ratio-freediver-sapphire-stainless-steel-salmon-dial-automatic-rtf046-200m-mens-watch·MSRP $125
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

FreeDiver 200M Automatic

U18
Diameter
43.5mm
44mm
Thickness
13mm
lowest
15.5mm
Water Resistance
200m
2000m
highest
Power Reserve
40h
42h
highest
MSRP
$125
lowest
$3,488
Movement
Seiko NH35
Sellita SW300-1
Case
7 specsCrystal & Dial
4 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Ratio FreeDiver 200M Automatic as a great value, with one owner specifically noting its lume is very good. The watch is considered a noticeable step up in general quality compared to other budget brands. One owner purchased an orange variant for around $100. Overall, owners rate the Ratio FreeDiver 200M Automatic highly for its exceptional value at the price point.
The Sinn U18 is lauded for its unique deep blue/green dial with three-dimensional oxygen bubbles that shift with light, and its comfortable, easily adjustable bracelet. Owners describe the 44mm case as having apparent thickness, with one noting minor wear on the underside of the lugs from strap changes. The watch is praised for its versatility, amazing accuracy, and great quality. The Sinn U18 comes with a Sellita SW300-1 movement and a 2000-meter dive specification. On balance, owners and reviewers rate the Sinn U18 highly for its unique dial and overall quality at its price point.
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