Side by side

Citizen Atomic Perpetual A-TvsSternglas Naos XS

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

Naos XS
SternglasNaos XS
MSRP $247

At a glance

13 of 29 specs differ
Diameter
Atomic Perpetual A-T41mm
Naos XS33mm
Power Reserve
Atomic Perpetual A-T40h
Naos XS
Water Resistance
Atomic Perpetual A-T200m
Naos XS50m
MSRP
Atomic Perpetual A-T
Naos XS$247

Full specifications

Case

6 specs
Category
Pilot
Dress
Diameter
41mm
33mm
Thickness
12mm
6mm
Lug-to-Lug
46mm
36mm
Lug Width
20mm
16mm
Water Resistance
200m
50m

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Blue

Movement

4 specs
Caliber
H800
Ronda 784
Type
Solar
Quartz
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$247

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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 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.

Sternglas Naos XS

Owners widely praise the Sternglas Naos XS for its simple, awesome design, domed sapphire crystal, and clean hands, with one owner highlighting the beautiful blue mother-of-pearl dial and top-notch build quality on a special edition. It is recommended as a durable, refined daily wear watch for around $270, suitable for casual and formal occasions. However, one owner found the Sternglas Naos XS to have a cheap feel and a face resembling a toy, noting it wears smaller than expected, while another described the automatic movement as a bit noisy. On balance, owners rate the Sternglas Naos XS highly for its refined design and value, with specific praise for the mother-of-pearl dial on special editions.

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