Seiko 5 Sports SKX seriesvsZelos Swordfish 40mm Ti

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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.

Seiko 5 Sports SKX series at true scale

5 Sports SKX series

Zelos Swordfish 40mm Ti at true scale

Swordfish 40mm Ti

Diameter

38mm

40mm

Lug-to-Lug

44.2mm

lowest

46mm

Thickness

12.1mm

12mm

lowest

Water Resistance

100m

200m

highest

Power Reserve

41h

n/a

MSRP

$350

lowest

$459

Movement

Seiko 4R36

Seiko NH35

Case

5 specs
Diameter
38mm
40mm
Thickness
12.1mm
12mm
Lug-to-Lug
44.2mm
46mm
Material
Stainless Steel
Titanium
Water Resistance
100m
200m

Crystal & Dial

4 specs
Crystal
Hardlex
Sapphire
AR Coating
n/a
Yes
Dial Color
n/a
n/a
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
Seiko 4R36
Seiko NH35
Power Reserve
41h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$350
$459
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Reviews

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

Seiko 5 Sports SKX series

The Seiko 5 Sports SKX series is widely praised as an excellent value gateway watch, with owners and reviewers highlighting its solid build and powerful lume. The 22mm bracelet is noted for its comfort, and the watch offers numerous style options. Some owners find the original SKX models heavy and bulky, while others appreciate their ruggedness and iconic dive watch design. The Seiko 5 Sports SKX series offers an upgraded movement with hacking and hand-winding, and standard spring bars for easier strap changes. However, it lacks the screw-down crown and ISO certification of the original SKX, leading some to consider it less of a tool watch. On balance, owners and reviewers rate the Seiko 5 Sports SKX series highly for its value and modern features, despite some preferring the tool watch capabilities of its predecessor.

Zelos Swordfish 40mm Ti

Owners widely praise the Zelos Swordfish 40mm Ti for its comfortable titanium construction, compact size, and short lugs, noting its solid build and value. The full lume dial and bezel insert are highlighted as bright and long-lasting, with the Seiko NH35 movement's crown winding described as smoother than alternatives. Some owners note the bracelet's male end links fit perfectly without play on the 40mm case. One owner found the titanium construction ultimately unsuitable for their preferences. On balance, owners and reviewers rate the Zelos Swordfish 40mm Ti highly for its comfortable wearability and impressive lume at its price point.