Glycine Sea KrakenvsSerket Watch Co Reef Mariana

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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.

Glycine Sea Kraken at true scale

Sea Kraken

Serket Watch Co Reef Mariana at true scale

Reef Mariana

Diameter

39mm

40mm

Lug-to-Lug

n/a

47.5mm

Thickness

12.7mm

lowest

13.2mm

Water Resistance

150m

200m

highest

Power Reserve

38h

n/a

MSRP

$715

$449

lowest

Movement

Sellita SW200-1

Seiko NH35

Case

7 specs
Diameter
39mm
40mm
Thickness
12.7mm
13.2mm
Lug-to-Lug
n/a
47.5mm
Lug Width
22mm
20mm
Finish
n/a
n/a
Water Resistance
150m
200m
Caseback
n/a
n/a

Crystal & Dial

5 specs
Crystal Shape
n/a
n/a
AR Coating
n/a
n/a
Dial Color
White
Orange
Indices
n/a
n/a
Lume
Luminous
BGW9

Movement

5 specs
Caliber
Sellita SW200-1
Seiko NH35
Beat Rate
28,800 vph
0 vph
Power Reserve
38h
n/a
Jewels
26
0
Complications
Date
None

Pricing

1 specs
MSRP
$715
$449
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Reviews

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

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.

Serket Watch Co Reef Mariana

Owners widely praise the Serket Watch Co Reef Mariana for its excellent value, citing the sapphire crystal, ceramic bezel, and reliable Seiko NH35 automatic movement at its price point. Some owners note the bezel turns too easily and suggest the lume could be stronger. Overall, owners rate the Serket Watch Co Reef Mariana highly for its eye-catching dial and bezel combination and strong feature set for the price.