Beaufort SeatrekkervsSeiko Prospex Sea
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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.

Seatrekker

Prospex Sea
Diameter
39mm
41.3mm
Lug-to-Lug
n/a
48.2mm
Thickness
12.6mm
12.5mm
lowest
Water Resistance
200m
300m
highest
Power Reserve
42h
72h
highest
MSRP
$345
lowest
$1,100
Movement
Miyota 9039
Seiko 6R55
Case
5 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Beaufort Seatrekker is praised for its sharp case, intriguing dégradé dial, and good value around €600. One owner found the included TPU strap fit problematic, noting that an optional steel bracelet significantly improved wearability and perceived quality. The watch ran at +5-10 seconds per day during testing. On balance, owners and reviewers rate the Beaufort Seatrekker highly for its case finishing and dial design at its price point.
The case finishing is a strength. The lume brightness was not agreed upon.
Owners and reviewers widely praise the Seiko Prospex Sea for its robust build quality and fair price, with many noting its comfortable silicone strap. Some owners find the watch's size, thickness, and weight to be uncomfortable for smaller wrists, while others consider the size perfect. The consensus is that the Seiko Prospex Sea offers excellent value and build quality for its price.
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