Glycine Sea KrakenvsSeiko HBC007J1
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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.

Sea Kraken

HBC007J1
Diameter
39mm
39.5mm
Lug-to-Lug
n/a
46.4mm
Thickness
12.7mm
lowest
13.6mm
Water Resistance
150m
200m
highest
Power Reserve
38h
72h
highest
MSRP
$715
lowest
$1,150
Movement
Sellita SW200-1
Seiko 6R54
Case
7 specsCrystal & Dial
5 specsMovement
5 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
The Glycine Sea Kraken's value at its price point is a significant strength. Reviewers did not reach a consensus on any weaknesses.
Owners widely praise the Seiko HBC007J1's "alive" feel and reflective green dial, with one owner preferring it over a more expensive alternative. The 39.5mm case is noted as a contemporary take on a classic design. Some owners find the 1-12 ring a "purpose nerf," and the included strap is considered underwhelming. Accuracy is rated at -15/+25 seconds per day, and some may prefer a flyer GMT at its $1,150 price point. On balance, owners and reviewers rate the Seiko HBC007J1 well for its vibrant dial and engaging character at the price.
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