Side by side

Citizen Atomic Perpetual A-TvsLorier Neptune SIV

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

Neptune SIV
LorierNeptune SIV
MSRP $599

At a glance

9 of 29 specs differ
Diameter
Atomic Perpetual A-T41mm
Neptune SIV39mm
Power Reserve
Atomic Perpetual A-T40h
Neptune SIV40h
Water Resistance
Atomic Perpetual A-T200m
Neptune SIV200m
MSRP
Atomic Perpetual A-T
Neptune SIV$599

Full specifications

Case

4 specs
Category
Pilot
Diver
Diameter
41mm
39mm
Thickness
12mm
Lug-to-Lug
46mm

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Blue
Standard

Movement

2 specs
Caliber
H800
Type
Solar
Automatic

Pricing

1 specs
MSRP
$599

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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.

Lorier Neptune SIV

Owners widely praise the Lorier Neptune SIV for its versatile, vintage-inspired design featuring a glossy gilt-style dial and a comfortable, tapered bracelet, noting its affordability reduces wear anxiety. Reviewers and owners alike mention the acrylic crystal as a point of contention, with some preferring sapphire, and one owner finds the bracelet lacks the feel of more expensive options. On balance, owners and reviewers rate the Lorier Neptune SIV highly for its appealing vintage aesthetic and value proposition.

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