Ratio FreeDiver 200M AutomaticvsSinn U18

FreeDiver 200M Automatic
RatioFreeDiver 200M Automatic

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.

Ratio FreeDiver 200M Automatic at true scale

FreeDiver 200M Automatic

Sinn U18 at true scale

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 specs
Diameter
43.5mm
44mm
Thickness
13mm
15.5mm
Lug Width
n/a
22mm
Material
Stainless Steel
high-strength
Finish
n/a
n/a
Water Resistance
200m
2000m
Caseback
n/a
n/a

Crystal & Dial

4 specs
Crystal Shape
n/a
n/a
AR Coating
n/a
n/a
Dial Color
n/a
Black
Indices
n/a
n/a

Movement

4 specs
Caliber
Seiko NH35
Sellita SW300-1
Beat Rate
0 vph
28,800 vph
Power Reserve
40h
42h
Jewels
0
25

Pricing

1 specs
MSRP
$125
$3,488
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Ratio FreeDiver 200M Automatic

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.

Sinn U18

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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