Dryden Chrono Diver Series 1vsSeiko 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.

Chrono Diver Series 1

Astron
Diameter
42mm
43.3mm
Lug-to-Lug
49mm
lowest
49.5mm
Thickness
13.5mm
13.4mm
lowest
Water Resistance
101m
highest
100m
MSRP
$349
lowest
$2,700
Movement
Quartz
Seiko 5X83
Case
6 specsCrystal & Dial
5 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Dryden Chrono Diver Series 1 is a 42mm mechaquartz chronograph with a sapphire crystal and 100m water resistance. Owners note that the chronograph hand may not reset perfectly to zero, a characteristic of the VK63 movement. The case features polished chamfers on the upper lugs, and the watch utilizes Swiss Superluminova BGW9. It has been listed for sale at prices ranging from $150 to $255 and includes two straps. Overall, owners appreciate the Dryden Chrono Diver Series 1 for its classic design and value, despite the common VK63 chronograph reset quirk.
The Seiko VK63 mechaquartz movement is a shared strength, noted for its instant reset and sweeping chronograph hand. The bezel action and water resistance were considered standard for the price point.
Owners widely praise the Seiko Astron for its impressive timekeeping technology and grab-and-go convenience, with many appreciating its lightweight titanium build and well-finished case and bracelet. Reviewers and owners alike highlight the dynamic and detailed dials, often comparing their execution to higher-end brands. The solar-powered quartz movement with GPS time sync is a significant draw for its accuracy and ease of use, especially for travelers. However, some owners find the price point of around $2000 to $2400 too high when compared to luxury mechanical watches or smartwatches, and one owner noted disappointing accuracy of +13 seconds per month for its cost. Other points of contention include recessed buttons requiring a tool and a push-pull crown with a non-screw-down caseback raising water resistance concerns for some.
The watch's automatic time zone adjustment via GPS is a notable feature. The watch's solar-powered charging system can take up to 6 months to fully charge, which may not be ideal for users who need a quick power boost.
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