Seaholm OffshorevsSeiko 5KX

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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.

Seaholm Offshore at true scale

Offshore

Seiko 5KX at true scale

5KX

Diameter

41mm

42.5mm

Lug-to-Lug

n/a

46mm

Thickness

n/a

13.4mm

Water Resistance

200m

highest

100m

Power Reserve

38h

41h

highest

MSRP

$825

$350

lowest

Movement

Sellita SW200-1

Seiko 4R36

Case

5 specs
Diameter
41mm
42.5mm
Thickness
n/a
13.4mm
Lug-to-Lug
n/a
46mm
Lug Width
21mm
22mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Empire Green
Blue
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW200-1
Seiko 4R36
Power Reserve
38h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$825
$350
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Reviews

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

Seaholm Offshore

Owners widely praise the Seaholm Offshore for its execution, noting attention to detail on the brushed dial, a classic no-crown-guard aesthetic, and a beautiful dial color. The domed crystal and solid, quality feel are also frequently highlighted, with one owner finding it a great value. The bracelet's simple screw-link sizing is a practical plus. Seaholm Offshore watches are built to meet ISO 6425 water resistance specifications and offer significant shock and magnetism protection through proprietary components. Overall, owners rate the Seaholm Offshore highly for its detailed finishing and quality feel at its price point.

Seiko 5KX

Owners widely praise the Seiko 5KX for its strong lume and value, with many reporting accuracy within +/-5 to 10 seconds per day, though some experience +/-1 second. The 42.5mm case is noted to wear smaller, and the watch offers a comfortable feel for many. Some owners are split on the bracelet quality, with opinions ranging from "cheaper side" with hollow links to "flimsy-feeling" jubilee. A few quality control issues have been reported, including a failed bezel clickspring and misaligned components. The Seiko 5KX is seen by some as a worthy successor to the original SKX, offering an upgraded movement with hacking and hand-winding capabilities, though others lament the loss of ISO certification and a screw-down crown. Overall, owners rate the Seiko 5KX highly for its excellent lume and value proposition, making it a popular choice for everyday wear.