Glycine Combat Sub SportvsSeiko 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.

Glycine Combat Sub Sport at true scale

Combat Sub Sport

Seiko HBC007J1 at true scale

HBC007J1

Diameter

39mm

39.5mm

Lug-to-Lug

n/a

46.4mm

Thickness

11.2mm

lowest

13.6mm

Water Resistance

300m

highest

200m

Power Reserve

38h

72h

highest

MSRP

$540

lowest

$1,150

Movement

Sellita SW200-1

Seiko 6R54

Case

6 specs
Diameter
39mm
39.5mm
Thickness
11.2mm
13.6mm
Lug-to-Lug
n/a
46.4mm
Finish
n/a
n/a
Water Resistance
300m
200m
Caseback
n/a
n/a

Crystal & Dial

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

Movement

5 specs
Caliber
Sellita SW200-1
Seiko 6R54
Beat Rate
28,800 vph
0 vph
Power Reserve
38h
72h
Jewels
26
0
Complications
Date
None

Pricing

1 specs
MSRP
$540
$1,150
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Reviews

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

Glycine Combat Sub Sport

Owners widely praise the Glycine Combat Sub Sport for its thinness, with various sources citing measurements between 10.4mm and 10.8mm, and its comfortable wearability due to contoured lugs that make it feel smaller than its 39mm case size. Reviewers and owners consistently highlight its value, with some considering it the best dive watch under $400 and noting its refined finishing and smooth winding action. However, opinions are mixed on its design, with some finding it unique and others plain or questioning its homage status. Lume quality is a point of contention, with some finding it subpar and hard to read at night, while others describe it as marginally better than a Seiko SKX007. Some owners have also reported inconsistent power reserve or stem issues. Overall, owners and reviewers rate the Glycine Combat Sub Sport highly for its exceptional thinness and value proposition at the price point.

Seiko HBC007J1

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.