BOLDR Supply Co. The Black DragonfishvsSeiko Seiko 5 Sports Field series

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BOLDR Supply Co.The Black Dragonfish

MSRP $799

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Seiko Seiko 5 Sports Field series

MSRP $315

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Buy from Seiko Used on eBay

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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.

The Black Dragonfish

Seiko 5 Sports Field series

Diameter

Across the case, crown excluded.

40mm

39.4mm

Lug-to-Lug

The number that decides fit.

48mm

lowest

48.1mm

Thickness

How it sits under a cuff.

12.5mm

lowest

13.2mm

Water Resistance

Rated in meters.

300m

highest

100m

Power Reserve

How long it runs off the wrist.

42h

highest

41h

MSRP

Sticker price, new.

$799

$315

lowest

Movement

What drives the hands.

Miyota 9075

Seiko 4R36

Spec

The Black Dragonfish

Seiko 5 Sports Field series

Case

6 specs

Crystal & Dial

4 specs

Crystal

Sapphire

Hardlex

Crystal Shape

n/a

Curved

Dial Color

n/a

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Miyota 9075

Seiko 4R36

Power Reserve

42h

41h

Jewels

Pricing

1 specs

MSRP

$799

$315

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Reviews

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

BOLDR Supply Co. The Black Dragonfish

Owners praise the BOLDR Supply Co. The Black Dragonfish for its functional GMT complication and striking Superkuro Musou Black dial, which offers excellent readability. One owner notes the bezel's functionality as a minor drawback. Some owners find it a good option among various configurations, with one suggesting it is great if the budget extends to $800 USD. On balance, owners rate the BOLDR Supply Co. The Black Dragonfish highly for its functional GMT complication and striking dial, though some question its overall value proposition.

Reddit·4

Fratello

Seiko 5 Sports Field series

The Seiko 5 Sports Field series is praised for its excellent legibility, featuring fully lumed Arabic numerals and a lumed pearl on the compass bezel. Reviewers note the reliable 4R36 movement and 10 bar water resistance, with some considering the watches good value under 500 euros. The GMT variants, specifically the SSK023 and SSK025, offer an accessible explorer watch with a GMT complication and a fixed 24-hour bezel. Overall, owners and reviewers rate the Seiko 5 Sports Field series highly for its legibility and value proposition.

Monochrome·2