Side by side

Citizen Atomic Perpetual A-TvsCWC T20 General Service Quartz Watch

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

T20 General Service Quartz Watch
CWCT20 General Service Quartz Watch
MSRP $249

At a glance

12 of 29 specs differ
Diameter
Atomic Perpetual A-T41mm
T20 General Service Quartz Watch38mm
Power Reserve
Atomic Perpetual A-T40h
T20 General Service Quartz Watch40h
Water Resistance
Atomic Perpetual A-T200m
T20 General Service Quartz Watch50m
MSRP
Atomic Perpetual A-T
T20 General Service Quartz Watch$249

Full specifications

Case

5 specs
Category
Pilot
Field
Diameter
41mm
38mm
Lug-to-Lug
46mm
42mm
Lug Width
20mm
18.5mm
Water Resistance
200m
50m

Crystal & Dial

4 specs
Crystal
Sapphire
Acrylic
AR Coating
Underside
Inner
Dial Color
Blue
CWC T20 General Service Quartz Watch
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
H800
Ronda 515
Type
Solar
Quartz

Pricing

1 specs
MSRP
$249

Follow this matchup

Get a note when Citizen Atomic Perpetual A-T vs CWC T20 General Service Quartz Watch gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

Citizen Atomic Perpetual A-T

Owners widely praise the Citizen Atomic Perpetual A-T for its handsome appearance, solid fit and finish, comfortable bracelet, and intuitive world time function. Its perpetual calendar and atomic timekeeping are highlighted as major conveniences, maintaining accuracy within 0.5 seconds even without syncing, and owners appreciate its "set & forget" nature and solar charging. The watch features a modest, stylish blue dial with delicate design details and a clutter-free layout, along with high water resistance without a screw-down crown and light titanium construction. Some find the dial unnecessarily busy, and its time zone functionality is noted as less useful outside the US, with atomic sync being less compelling below the equator. Accuracy is reported as +/-15 seconds per month if not syncing, but +/-0 seconds if it syncs via radio signal. Some find the watch a bit on the large side.

CWC T20 General Service Quartz Watch

The CWC T20 General Service Quartz Watch is widely praised for its simple, clean, and classic look, with owners considering it a classy and comfortable field watch. Its 38mm tonneau case is seen by some as a cool retro piece representative of original MOD specifications, though others find this size too small for larger wrists. The watch is noted for keeping accurate time, with one owner reporting it as practical for everyday wear. It features a stainless steel case, sapphire crystal, and a Ronda 715 movement. A limitation mentioned is the fixed lugs, which restrict strap versatility. Overall, owners rate the CWC T20 General Service Quartz Watch highly for its classic military-inspired aesthetic and reliable timekeeping at an affordable price.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.