Side by side

Citizen Series 8 831vsGlycine Combat Sub Sport

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

Series 8 831
CitizenSeries 8 831
MSRP $1,095
Combat Sub Sport
GlycineCombat Sub Sport
MSRP $1,850

At a glance

17 of 29 specs differ
Diameter
Series 8 83140mm
Combat Sub Sport39mm
Power Reserve
Series 8 83142h
Combat Sub Sport38h
Water Resistance
Series 8 831100m
Combat Sub Sport300m
MSRP
Series 8 831$1,095
Combat Sub Sport$1,850

Full specifications

Case

7 specs
Category
Sport
Diver
Diameter
40mm
39mm
Thickness
12mm
11.2mm
Lug-to-Lug
46mm
Finish
Brushed and polished
Water Resistance
100m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Dial Color
Green
Black
Indices
Applied
Lume
None
Luminous

Movement

4 specs
Caliber
9051
SW200-1
Power Reserve
42h
38h
Jewels
25
26
Complications
None
Date

Pricing

1 specs
MSRP
$1,095
$1,850

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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.

Citizen Series 8 831

Owners widely praise the Citizen Series 8 831 for its finishing, with one owner noting it exceeded expectations. Reviewers highlight the textured Ice Blue dial and the bracelet's play of light, contributing to a comfortable and luxurious feel on the wrist. The watch features a 40mm ion-plated stainless steel case, a sapphire crystal, and 100 meters of water resistance. It is powered by the in-house Miyota Caliber 9051 automatic movement, which has a 42-hour power reserve and an accuracy range of -10 to +20 seconds per day. On balance, owners and reviewers rate the Citizen Series 8 831 highly for its impressive finishing and dial design at its price point.

From video reviewers

The case finishing, with its contrasting brushed and polished surfaces, is a notable strength. The 40mm case size and comfortable fit are also consistently mentioned. Reviewers did not reach a consensus on any weaknesses.

Glycine Combat Sub Sport

Owners widely praise the Glycine Combat Sub Sport for its exceptional thinness, with multiple sources noting profiles between 10.4mm and 11mm, comfortable wearability on a variety of wrist sizes due to its proportions and contoured lugs, and its value, especially when found under $400. Some owners highlight its refined finishing and unique, non-homage design, while others appreciate its ruggedness and durability, with one noting PVD coating remained flawless after three years of heavy use. Accuracy figures range from excellent, with one owner reporting only 2 seconds lost per day, to inconsistent power reserve and occasional reported issues with the movement and stem. The lume is described as subpar by some, though one owner found it marginally better than a Seiko SKX007. Reservations are occasionally raised regarding warranty service and the use of folded end links on the bracelet.

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