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.

Ollech & Wajs M-52B AF at true scale

M-52B AF

Seiko Prospex Sea at true scale

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 specs
Diameter
39.5mm
43.8mm
Thickness
12.5mm
12.8mm
Lug-to-Lug
48mm
48.7mm
Lug Width
n/a
22mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Soprod P024
Seiko 4R35
Power Reserve
38h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$2,010
$625
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Ollech & Wajs M-52B AF

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.

Seiko Prospex Sea

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.