Side by side

Glycine Sea KrakenvsGrand Seiko SBGM221

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Sea Kraken
GlycineSea Kraken
MSRP $1,600
SBGM221
Grand SeikoSBGM221
MSRP $5,400

At a glance

18 of 29 specs differ
Diameter
Sea Kraken39mm
SBGM22139.5mm
Power Reserve
Sea Kraken38h
SBGM22172h
Water Resistance
Sea Kraken150m
SBGM22130m
MSRP
Sea Kraken$1,600
SBGM221$5,400

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
39mm
39.5mm
Thickness
12.7mm
13.7mm
Lug-to-Lug
46.9mm
Lug Width
22mm
19mm
Finish
Brushed and polished
Water Resistance
150m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
White
Black
Indices
Applied
Lume
Luminous
None

Movement

4 specs
Caliber
SW200-1
9S66
Power Reserve
38h
72h
Jewels
26
25
Complications
Date
None

Pricing

1 specs
MSRP
$1,600
$5,400

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What people say

Owners + reviewers, side by side

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 case finishing for its price, with reviewers noting crisp dial printing and an elegant stainless steel bezel. Owners report excellent accuracy, with some seeing deviations as low as 1 second per day, though one user observed up to a 6-second loss during high activity. The 39mm size is generally considered comfortable, though its 48mm lug-to-lug measurement may be an issue for smaller wrists. The bezel action is consistently flagged as strong with no back-play. The included leather strap is frequently criticized as unsuitable for a diver and often replaced. On balance, owners and reviewers rate the Glycine Sea Kraken highly for its vintage aesthetic and strong value proposition, particularly given its adjusted Sellita SW200 movement and limited edition status.

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.

Grand Seiko SBGM221

Grand Seiko SBGM221 is widely praised for its exceptional dial finish, highly polished hands and indices, and elegant design. Owners consistently highlight the stunning craftsmanship, with specific mention of the up to 11 hand-polished facets on its rectangular markers. The reliable 9S66 movement is noted for its 72-hour power reserve and true GMT functionality, tested beyond Chronometer specifications. Some enthusiasts desire a bidirectional 24-hour bezel, which the Grand Seiko SBGM221 lacks, and its 13.7mm thickness and 19mm lug width are noted as potential limitations. On balance, owners rate the Grand Seiko SBGM221 highly for its exquisite finishing and elegant, comfortable design.

From video reviewers

The SBGM221 is praised for its value within the Grand Seiko lineup. The lug width is cited as a weakness.

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