Citizen Promaster Tsuno Chrono RacervsSeiko Astron

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Citizen Promaster Tsuno Chrono Racer at true scale

Promaster Tsuno Chrono Racer

Seiko Astron at true scale

Astron

Diameter

43.3mm

44.1mm

Lug-to-Lug

n/a

50mm

Thickness

n/a

14.4mm

Water Resistance

200m

highest

100m

MSRP

$1,225

lowest

$3,100

Movement

Citizen E210

Seiko 5X83

Case

6 specs
Diameter
43.3mm
44.1mm
Thickness
n/a
14.4mm
Lug-to-Lug
n/a
50mm
Lug Width
n/a
14mm
Material
Super Titanium
Titanium
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Super-clear coating
Dial Color
Blue
n/a
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Citizen E210
Seiko 5X83
Type
Solar
Quartz
Jewels
0
14

Pricing

1 specs
MSRP
$1,225
$3,100
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Citizen Promaster Tsuno Chrono Racer

The Citizen Promaster Tsuno Chrono Racer is praised for its bright blue dial with motorsport-inspired subdials and its retro styling blended with modern Eco-Drive technology. It features a flyback chronograph movement with an accuracy of +/-15 seconds per month and an eight-month power reserve. The watch is priced at $1,195 USD. On balance, reviewers highlight the Citizen Promaster Tsuno Chrono Racer's successful fusion of vintage aesthetics and contemporary solar-powered functionality at its price point.

Seiko Astron

Owners widely praise the Seiko Astron for its impressive technology, including GPS time synchronization and solar charging, making it a convenient grab-and-go option. Reviewers and owners alike highlight its well-finished case and bracelet, with some noting its comfortable and lightweight titanium construction. The textured dials are often described as attractive and detailed, with contrasting markers and subtle accents. However, the price point is frequently cited as high for a quartz watch, and some find its aesthetic struggles to compete with luxury mechanical watches. One owner notes the minute hand sits slightly off, and another flags sparse lume on the dial. Accuracy varies, with some reporting +/- 15 seconds per month without GPS, while others find it acceptable due to easy correction.

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