Seiko Seiko 5 Sports SKX seriesvsTrematic ZY6

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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 Seiko 5 Sports SKX series at true scale

Seiko 5 Sports SKX series

Trematic ZY6 at true scale

ZY6

Diameter

38mm

38mm

Lug-to-Lug

44.2mm

44mm

lowest

Thickness

12.1mm

11.1mm

lowest

Water Resistance

100m

100m

Power Reserve

41h

41h

MSRP

$350

lowest

$855

Movement

Seiko 4R36

Sellita SW200-1

Case

3 specs
Category
Diver
n/a
Thickness
12.1mm
11.1mm
Lug-to-Lug
44.2mm
44mm

Crystal & Dial

3 specs
Crystal
Hardlex
Sapphire
Dial Color
n/a
n/a
Lume
LumiBrite on hands and index(es)
None

Movement

2 specs
Caliber
Seiko 4R36
Sellita SW200-1
Jewels
24
0

Pricing

1 specs
MSRP
$350
$855
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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.

Trematic ZY6

The Trematic ZY6 is praised for its fantastic appearance, particularly the blue/white dial on a bracelet, and its elegant, vintage-inspired design with applied markers. The 38mm stainless steel case is described as fully polished. However, the grainy textured dial is a point of contention for some owners, with one reporting it as a documented problem. The watch has 100m water resistance. Overall, owners and reviewers appreciate the Trematic ZY6's aesthetic appeal and refined design, though the dial texture is a divisive element.