Side by side

Citizen Promaster Air A-TvsSeiko Astron

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

Promaster Air A-T
CitizenPromaster Air A-T
MSRP $581
Astron
SeikoAstron
MSRP $3,100

At a glance

15 of 29 specs differ
Diameter
Promaster Air A-T46mm
Astron44.1mm
Power Reserve
Promaster Air A-T40h
Astron40h
Water Resistance
Promaster Air A-T200m
Astron100m
MSRP
Promaster Air A-T$581
Astron$3,100

Full specifications

Case

7 specs
Category
Pilot
Chronograph
Diameter
46mm
44.1mm
Thickness
12mm
14.4mm
Lug-to-Lug
46mm
50mm
Lug Width
22mm
14mm
Material
Stainless Steel
Titanium
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
Green
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
E660
5X83
Type
Solar
Quartz
Jewels
25
14

Pricing

1 specs
MSRP
$581
$3,100

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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 Promaster Air A-T

Owners widely praise the Citizen Promaster Eco-Drive for its value, reliability, and maintenance-free operation. Reviewers note the Citizen Promaster Air Automatic GMT is a large 44.5mm watch with a well-proportioned case and balanced dial, powered by an in-house automatic GMT movement. Concerns are raised about the unframed date window and uninspired case design on the GMT. Some owners find certain models, like the 36mm Eco-Drive, to be very small. The Promaster Air Automatic GMT is priced at $1,125 USD. On balance, owners and reviewers highlight the Promaster's strong value and reliability as its primary strengths.

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular technology, self-sufficiency, and grab-and-go convenience, with one owner calling it the best watch they have ever had. Reviewers and owners highlight the detailed and well-managed dials, often with "Grand Seiko-esque" precision, and appreciate the comfortable, lightweight titanium construction. The solar-powered quartz movement with GPS time sync is a significant draw, offering accurate timekeeping. However, the price point of around €2250-€2400 is frequently cited as high for a quartz watch. Some owners note manual DST implementation, dependence on outdoor conditions or radio tower proximity for GPS sync, and sparse lume. One owner experienced the minute hand sitting slightly off and found the recessed buttons difficult to operate. Accuracy figures vary, with some reporting +/- 15 seconds per month without GPS, while others note autonomous quartz movement accuracy of up to 1/2 second per day.

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