Ollech & Wajs M-52B AFvsSeiko 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.

M-52B AF

Prospex Sea
Diameter
39.5mm
43.8mm
Lug-to-Lug
48mm
lowest
48.7mm
Thickness
12.5mm
lowest
12.8mm
Water Resistance
300m
highest
200m
Power Reserve
38h
41h
highest
MSRP
$2,010
$625
lowest
Movement
Soprod P024
Seiko 4R35
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 Olech & Wajs Watches M-52B AF is a 39.5mm tool watch with 300m water resistance and a Soprod P024 automatic movement. It features a PVD-coated bezel and a dial with a B-52 bomber outline, which some find too prominent and can obscure the hands. The watch is a limited edition of 56 pieces, priced at CHF 1,256, with pre-orders opening January 12, 2024. On balance, owners and reviewers note the Olech & Wajs Watches M-52B AF for its distinct tactical design and robust build, though the prominent B-52 graphic on the dial is a polarizing element.
The Seiko Prospex Sea is widely praised for its excellent value as a sport watch, with owners highlighting its comfortable wearability and generous lume. Reviewers note its solid build quality and attractive design, with some specifically mentioning the matte black dial as a strong point. One owner reports accuracy around +1 to +2 seconds per day. The 43.8mm case size is considered substantial by some, and one owner found the watch heavy and thick, regretting not choosing a different variant. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its blend of classic design and modern utility at an accessible price point.
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