Side by side

Citizen Atomic Perpetual A-TvsLongines MASTER COLLECTION CHRONOGRAPH

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

MASTER COLLECTION CHRONOGRAPH
LonginesMASTER COLLECTION CHRONOGRAPH
MSRP $3,650

At a glance

20 of 29 specs differ
Diameter
Atomic Perpetual A-T41mm
MASTER COLLECTION CHRONOGRAPH40mm
Power Reserve
Atomic Perpetual A-T40h
MASTER COLLECTION CHRONOGRAPH
Water Resistance
Atomic Perpetual A-T200m
MASTER COLLECTION CHRONOGRAPH30m
MSRP
Atomic Perpetual A-T
MASTER COLLECTION CHRONOGRAPH$3,650

Full specifications

Case

8 specs
Category
Pilot
Chronograph
Diameter
41mm
40mm
Thickness
12mm
14.2mm
Lug-to-Lug
46mm
49.5mm
Lug Width
20mm
21mm
Finish
Brushed and polished
Water Resistance
200m
30m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Dial Color
Blue
Ivory
Indices
Applied

Movement

7 specs
Caliber
H800
L688.5
Type
Solar
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$3,650

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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.

Longines MASTER COLLECTION CHRONOGRAPH

Owners widely praise the Longines MASTER COLLECTION CHRONOGRAPH for its excellent fit and finish and classically styled, vintage theme. The 40mm model's dial is described as mesmerizing and legible, balancing class and complexity. One owner highlights the column-wheel chronograph and crown-set moonphase as exceptional for its price point, which was noted around $1700 USD. Accuracy varies, with one owner reporting +8 seconds per day, while another found the case finishing somewhat homogenous. The watch features a triple date complication and has a water resistance of 3 bar. On balance, owners rate the Longines MASTER COLLECTION CHRONOGRAPH highly for its value and refined aesthetics, particularly the chronograph and moonphase complications.

From video reviewers

The watch's elegant design, featuring an anthracite dial with gold Roman numerals and complications like the moonphase and chronograph, is a shared strength. The brown leather strap is noted as a matter of personal preference.

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