Aigi Watches GRUVEBUSvsSeiko 5 Sports SKX series

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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.

Aigi Watches GRUVEBUS at true scale

GRUVEBUS

Seiko 5 Sports SKX series at true scale

5 Sports SKX series

Diameter

40mm

38mm

Lug-to-Lug

n/a

44.2mm

Thickness

12.3mm

12.1mm

lowest

Water Resistance

200m

highest

100m

Power Reserve

n/a

41h

MSRP

$1,095

$350

lowest

Movement

Sellita SW200-1

Seiko 4R36

Case

4 specs
Diameter
40mm
38mm
Thickness
12.3mm
12.1mm
Lug-to-Lug
n/a
44.2mm
Water Resistance
200m
100m

Crystal & Dial

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

Movement

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

Pricing

1 specs
MSRP
$1,095
$350
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Reviews

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

Aigi Watches GRUVEBUS

Owners widely praise the Aigi Watches GRUVEBUS for its legibility and the unique coal-pressed dial motif, with some comparing its character to Grand Seiko. The watch features GTLS tubes for luminescence and a hardened steel 40mm case, powered by a Sellita SW200-1 automatic movement and offering 200m water resistance. Some owners report receiving the watch with a Miyota 9015 movement upgrade. One owner notes the Jubilee-style bracelet as a luxurious touch for a tool watch, while another finds the 40mm case size and 49mm lug-to-lug measurement to be chunky. On balance, owners and reviewers find the Aigi Watches GRUVEBUS to be a decent tool watch for its price, with its unique dial and legibility being key strengths.

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.

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