Boldr BOLDR x NitecorevsSeiko 5 Sports Field series

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Boldr BOLDR x Nitecore

MSRP $449

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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.

BOLDR x Nitecore

5 Sports Field series

Diameter

Across the case, crown excluded.

38mm

39.4mm

Lug-to-Lug

The number that decides fit.

44mm

lowest

48.1mm

Thickness

How it sits under a cuff.

12.8mm

lowest

13.2mm

Water Resistance

Rated in meters.

200m

highest

100m

Power Reserve

How long it runs off the wrist.

n/a

41h

MSRP

Sticker price, new.

$449

$315

lowest

Movement

What drives the hands.

Seiko NH35

Seiko 4R36

Spec

BOLDR x Nitecore

5 Sports Field series

Case

6 specs

Crystal & Dial

5 specs

Crystal

Sapphire

Hardlex

Crystal Shape

n/a

Curved

AR Coating

Yes

n/a

Dial Color

The Kraken by BOLDR x Nitecore

Black

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Seiko NH35

Seiko 4R36

Power Reserve

41h

Jewels

Pricing

1 specs

MSRP

$449

$315

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Reviews

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

BOLDR x Nitecore

The BOLDR x Nitecore is widely praised as a lightweight, legible, and perfectly sized 38mm field watch with a unique case shape and brilliant lume. Owners highlight the topographical map-inspired dial's fantastic depth, featuring color-matched Old-Radium C3 lume, white and orange accents, and subtle branding. The watch is described as light, durable, and powerfully lumed, with a flat sapphire crystal and AR coating. One owner notes a few tiny scuffs on the case and bezel. Overall, owners rate the BOLDR x Nitecore highly for its unique dial design and excellent lume at the price.

WatchUSeek·2

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