Ratio FreeDiver Professional 500MvsSeiko Prospex Sea 1968 Heritage Diver's GMT Limited Edition

FreeDiver Professional 500M
RatioFreeDiver Professional 500M

Ref. ratio-freediver-professional-500m-sapphire-blue-dial-automatic-32gs202a-blu-mens-watch·MSRP $130

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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 Professional 500M at true scale

FreeDiver Professional 500M

Seiko Prospex Sea 1968 Heritage Diver's GMT Limited Edition at true scale

Prospex Sea 1968 Heritage Diver's GMT Limited Edition

Diameter

42mm

42mm

Lug-to-Lug

n/a

48.6mm

Thickness

13mm

lowest

13.3mm

Water Resistance

500m

highest

300m

Power Reserve

n/a

72h

MSRP

$130

lowest

$1,750

Movement

Miyota 8215

Seiko 6R54

Case

4 specs
Thickness
13mm
13.3mm
Lug-to-Lug
n/a
48.6mm
Lug Width
n/a
20mm
Water Resistance
500m
300m

Crystal & Dial

2 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 8215
Seiko 6R54
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$130
$1,750
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Reviews

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

Ratio FreeDiver Professional 500M

Owners widely praise the Ratio FreeDiver Professional 500M Automatic 32GS202A for its exceptional value and solid build quality, with one owner specifically highlighting the screw-down crown as the most robust they have experienced. The watch is considered a feature-loaded dive-style option, offering 500m water resistance, and is seen as a step above competitors in its price bracket. One owner notes the use of a Miyota 8000 series movement without a hacking feature. Overall, owners rate the Ratio FreeDiver Professional 500M Automatic 32GS202A highly for its impressive build and value proposition.

Seiko Prospex Sea 1968 Heritage Diver's GMT Limited Edition

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition is widely praised for its excellent quality and finishing for its price, with reviewers highlighting its beautiful case, bracelet, and Lumibrite lume. Owners appreciate the comfortable 42mm case size and the 4 o'clock crown position. The watch features a sapphire crystal and uses the in-house 6R54 automatic movement with a three-day power reserve. Some reviewers note that the GMT function is secondary and that the bezel clicks are quieter than expected. The 4:30 date window splits opinion among enthusiasts, and it is described as a "caller GMT" rather than a true "traveller GMT." Overall, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition highly for its excellent value, quality finishing, and comfortable wearability.

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