March LA.B Bonzer Automatique MarsvsSeiko 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.
Bonzer Automatique Mars
Prospex Sea
Diameter
41mm
41.7mm
Lug-to-Lug
n/a
49.5mm
Thickness
n/a
12.3mm
Water Resistance
100m
200m
highest
Power Reserve
n/a
41h
MSRP
$1,605
$595
lowest
Movement
La Joux-Perret G100
Seiko 4R35
Case
6 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
March LA.B Bonzer Automatique Mars owners widely praise its handsome and unique designer aesthetic, noting its comfortable wearability. Some reviewers find the decorative dial sacrifices legibility, and one owner reports the silicone strap attracts dust. The watch is powered by a La Joux-Perret G100 automatic movement with a 68-hour power reserve and has 100m water resistance. On balance, owners and reviewers rate the March LA.B Bonzer Automatique Mars highly for its distinctive design and comfortable wear.
Owners widely report the Seiko Prospex Sea is a well-built watch at a fair price, with some finding its 41.7mm case size perfect while others with smaller wrists consider it big, thick, and heavy. Reviewers consistently praise the excellent lume and robust design. One owner notes the bezel action is smoother and more precise than some other Seiko divers. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its value and proven design.
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