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 $3,800

At a glance

20 of 29 specs differ
Diameter
Atomic Perpetual A-T41mm
MASTER COLLECTION CHRONOGRAPH44mm
Power Reserve
Atomic Perpetual A-T40h
MASTER COLLECTION CHRONOGRAPH66h
Water Resistance
Atomic Perpetual A-T200m
MASTER COLLECTION CHRONOGRAPH30m
MSRP
Atomic Perpetual A-T
MASTER COLLECTION CHRONOGRAPH$3,800

Full specifications

Case

8 specs
Category
Pilot
Chronograph
Diameter
41mm
44mm
Thickness
12mm
14.4mm
Lug-to-Lug
46mm
51.8mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Water Resistance
200m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Indices
Applied
Applied indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
H800
L688.5
Type
Solar
Automatic
Power Reserve
40h
66h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, small seconds at 9 o'clock and date

Pricing

1 specs
MSRP
$3,800

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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 classic styling and excellent fit and finish. The dial is described as mesmerizing and legible, balancing class and complexity, contributing to comfortable wearability. One owner finds the column wheel chronograph and moon phase complication a good value around $2k, though notes the case finishing can appear homogenous and the chronograph hour counter sometimes does not reset perfectly. A specific variant's 3 bar water resistance is noted as a limitation, restricting it to less demanding environments. One owner identified the movement as a Valjoux 7751. Overall, owners rate the Longines MASTER COLLECTION CHRONOGRAPH highly for its attractive dial and value proposition, despite minor finishing and water resistance caveats.

From video reviewers

The polished steel case finishing and the elegant dial with Roman numerals and complications are praised. The bracelet's perceived lack of solid links and the overall high polish of the case were noted as potential drawbacks. Reviewers disagreed on the value proposition compared to other chronographs in the market.

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