Seiko Prospex SeavsOceanica Watch Co. Mako

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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.

Seiko Prospex Sea at true scale

Prospex Sea

Oceanica Watch Co. Mako at true scale

Mako

Diameter

42mm

41mm

Lug-to-Lug

48.6mm

47mm

lowest

Thickness

13.3mm

13mm

lowest

Water Resistance

300m

highest

200m

Power Reserve

72h

n/a

MSRP

n/a

$320

Movement

Seiko 6R54

Seiko NH35

Case

5 specs
Diameter
42mm
41mm
Thickness
13.3mm
13mm
Lug-to-Lug
48.6mm
47mm
Lug Width
20mm
n/a
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
n/a
Dial Color
n/a
Blue
Lume
LumiBrite on hands, index(es) and bezel
C3

Movement

3 specs
Caliber
Seiko 6R54
Seiko NH35
Power Reserve
72h
n/a
Jewels
24
0

Pricing

1 specs
MSRP
n/a
$320
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Reviews

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

Seiko Prospex Sea

The Seiko Prospex Sea is widely recognized for its excellent value and solid build quality, with many owners appreciating its classic dive watch design and legible dial. Reviewers consistently praise its lume, with one owner noting it as excellent. The watch's finishing is also a frequent highlight, described as impressive and well-executed for its price point. Some owners find the 42mm case size wears well, even on smaller wrists, while others describe it as substantial and potentially uncomfortable for smaller wrists. The movement is noted as a 6R54 automatic. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its robust construction and classic dive watch aesthetics at a fair price.

Oceanica Watch Co. Mako

Owners widely praise the Oceanica Watch Co. Mako for its exceptional value and specifications, specifically noting the sapphire crystal, ceramic bezel, solid bracelet, and strong lume. The Seiko NH35 movement is present, though one owner reports typical timing fluctuations. The design is described as somewhat generic by one forum member. On balance, owners rate the Oceanica Watch Co. Mako highly for its impressive feature set and value proposition.

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