Side by side

Citizen Atomic Perpetual A-TvsGrand Seiko SLGH005

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

SLGH005
Grand SeikoSLGH005
MSRP $9,800

At a glance

12 of 29 specs differ
Diameter
Atomic Perpetual A-T41mm
SLGH00540mm
Power Reserve
Atomic Perpetual A-T40h
SLGH00580h
Water Resistance
Atomic Perpetual A-T200m
SLGH005100m
MSRP
Atomic Perpetual A-T
SLGH005$9,800

Full specifications

Case

6 specs
Category
Pilot
Dress
Diameter
41mm
40mm
Thickness
12mm
11.7mm
Lug-to-Lug
46mm
47mm
Lug Width
20mm
22mm
Water Resistance
200m
100m

Crystal & Dial

2 specs
AR Coating
Underside
Yes
Dial Color
Blue
Black

Movement

3 specs
Caliber
H800
9SA5
Type
Solar
Automatic
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$9,800

Follow this matchup

Get a note when Citizen Atomic Perpetual A-T vs Grand Seiko SLGH005 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.

Grand Seiko SLGH005

The Grand Seiko SLGH005 is widely praised for its stunning "White Birch" textured dial, exceptional finishing including mirror-polished indexes and Zaratsu polishing, and the innovative Caliber 9SA5 movement. Owners and reviewers consistently highlight the dial's texture and the elaborate, mirror-like indexes. The watch's 40mm stainless steel case is noted for its slender, sporty design and comfortable wearability, with some finding its size well-proportioned and its brushed and polished surfaces practical for hiding scratches. The 9SA5 movement is recognized for its 80-hour power reserve and 36,000 vph hi-beat frequency, though one owner found its finishing less impressive than other movement types in a similar price bracket. Some reviewers consider its price somewhat high relative to alternatives and desire a micro-adjustable bracelet. On balance, owners and reviewers rate the Grand Seiko SLGH005 highly for its exquisite dial and finishing, powered by an advanced high-beat movement.

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.