Aigi Watches GruvebusvsGlycine Sea Kraken

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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

Glycine Sea Kraken at true scale

Sea Kraken

Diameter

40mm

39mm

Thickness

12.3mm

lowest

12.7mm

Water Resistance

200m

highest

150m

Power Reserve

n/a

38h

MSRP

$1,095

$715

lowest

Movement

Sellita SW200-1

Sellita SW200-1

Case

7 specs
Diameter
40mm
39mm
Thickness
12.3mm
12.7mm
Lug-to-Lug
n/a
n/a
Lug Width
20mm
22mm
Finish
n/a
n/a
Water Resistance
200m
150m
Caseback
n/a
n/a

Crystal & Dial

5 specs
Crystal Shape
n/a
n/a
AR Coating
n/a
n/a
Dial Color
black
White
Indices
n/a
n/a
Lume
None
Luminous

Movement

4 specs
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
38h
Jewels
0
26
Complications
None
Date

Pricing

1 specs
MSRP
$1,095
$715
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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.

Glycine Sea Kraken

The Glycine Sea Kraken is widely praised for its retro design and excellent finishing for its price point. Owners highlight its crisp dial printing, elegant stainless steel bezel, and the smooth winding feel of its Sellita SW200-1 movement, with accuracy reported between +1/+2 and +6 seconds per day, though one owner noted it could lose up to 6 seconds when very active. The 39mm case size is generally considered comfortable, though some find its 48mm lug-to-lug measurement wears larger than expected. The included leather strap is frequently criticized as being of poor quality and unsuitable for a dive watch, prompting many owners to replace it. The Glycine Sea Kraken is considered an underrated watch offering great value, especially given its limited production and superior finishing compared to other Glycine models.

From video reviewers

The Glycine Sea Kraken's value at its price point is a significant strength. Reviewers did not reach a consensus on any weaknesses.