Beaufort BicompaxvsSeiko Astron GPS Solar 2025 Limited Edition
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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.

Bicompax

Astron GPS Solar 2025 Limited Edition
Diameter
40.5mm
43.4mm
Lug-to-Lug
47mm
lowest
49.5mm
Thickness
13.8mm
13.4mm
lowest
Water Resistance
50m
100m
highest
Power Reserve
63h
n/a
MSRP
$810
lowest
$2,900
Movement
Sellita SW510
Seiko 5X83
Case
6 specsCrystal & Dial
4 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Beaufort Bicompax for its attractive bicompax chronograph design, clean aesthetic, and excellent legibility with effective lume. The Sellita SW510 BH b movement is noted for performing well, with winding and setting actions comparable to ETA movements and accuracy within COSC parameters at +5 seconds/day. Fit and finish are considered spot on, with a well-executed gradient dial and subdials, and the h-link bracelet is described as comfortable and easy to size. Some owners find the price a bit high for the specifications on paper, and one commenter felt the blue dial could have more depth. On balance, owners and reviewers rate the Beaufort Bicompax highly for its vintage aesthetic and reliable manual-wind chronograph movement at 40.5mm.
Owners praise the Seiko Astron GPS Solar 2025 Limited Edition for its advanced satellite timekeeping and perpetual calendar, with a legible dial and high-quality titanium or steel case featuring a ceramic bezel. However, its size is noted as enormous, with some finding it wears large and doesn't fit well under shirt sleeves, though the technology is considered very cool. GPS signal reception requires a clear view of the sky, which can be an issue indoors. On balance, owners and reviewers rate the Seiko Astron GPS Solar 2025 Limited Edition highly for its cutting-edge satellite timekeeping technology.
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