Glycine Combat Sub SportvsSerket 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 Combat Sub Sport at true scale

Combat Sub Sport

Serket Watch Co Reef Mariana at true scale

Reef Mariana

Diameter

42mm

40mm

Lug-to-Lug

n/a

47.5mm

Thickness

10.4mm

lowest

13.2mm

Water Resistance

200m

200m

Power Reserve

38h

n/a

MSRP

$540

$449

lowest

Movement

Sellita SW200-1

Seiko NH35

Case

6 specs
Diameter
42mm
40mm
Thickness
10.45mm
13.2mm
Lug-to-Lug
n/a
47.5mm
Lug Width
22mm
20mm
Finish
n/a
n/a
Caseback
n/a
n/a

Crystal & Dial

5 specs
Crystal Shape
n/a
n/a
AR Coating
n/a
n/a
Dial Color
n/a
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
$540
$449
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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 exceptional value, often found under $400, its solid build with brushed finishing, and its notably thin case profile, with many sources citing dimensions around 10.4mm to 10.8mm, making it comfortable and wearable. Reviewers and owners consistently highlight its unique, non-homage aesthetic and excellent timekeeping, with some reporting accuracy within +1/+2 seconds per day, though one owner noted their Sellita SW200 movement ran at approximately +6 to +9 seconds per day. Some owners dislike the "COMBAT" text on the dial and find the lume sub-par, while others note inconsistent power reserve not always reaching the advertised 42 hours. On balance, owners and reviewers rate the Glycine Combat Sub Sport highly for its outstanding value and comfortable, thin wearability.

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.