Side by side

Seiko 62MASvsSeiko Prospex Sea

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

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

Seiko 62MAS

The Seiko Prospex Sea 1965 Heritage Diver's Watch is praised for its vintage-inspired finishing, crisp bezel action, and build quality. Owners widely report the movement averages within +/- 10 seconds per day, though some note accuracy issues. The 40mm case size is considered by some to wear larger than expected, and the price point is a subject of debate, with some finding it too high and others fair. The watch features a 72-hour power reserve from the Caliber 6R55 movement, a 300-meter depth rating, and a box-shaped sapphire crystal. On balance, owners and reviewers appreciate the Seiko Prospex Sea 1965 Heritage Diver's Watch for its refined design and solid build quality, despite some reservations about its price and perceived size.

Seiko Prospex Sea

Owners and reviewers widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many noting its comfortable wearability and faithful design recreations. Some owners report the watch can feel big, thick, and heavy on smaller wrists, while others find the sizing perfect. The bezel action is frequently highlighted as smooth and precise, often exceeding that of less expensive models. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its impressive finishing and value proposition.

At a glance

10 of 29 specs differ
Diameter
62MAS40.5mm
Prospex Sea41.7mm
Power Reserve
62MAS70h
Prospex Sea41h
Water Resistance
62MAS200m
Prospex Sea200m
MSRP
62MAS$1,200
Prospex Sea$595

Full specifications

Case

3 specs
Diameter
40.5mm
41.7mm
Thickness
13.2mm
12.3mm
Lug-to-Lug
47.6mm
49.5mm

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface

Movement

3 specs
Caliber
6R35
4R35
Power Reserve
70h
41h
Jewels
24
23

Pricing

1 specs
MSRP
$1,200
$595
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