Side by side

Seiko 62MASvsSeiko Monster

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 Monster

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many noting its comfortable wearability. Reviewers consistently highlight its impressive finishing and classic dive watch design, often comparing it favorably to older models. Some owners find the size substantial, with one noting it as big, thick, and heavy on a 6.5-inch wrist, while others find it perfect. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional value and robust, classic dive watch design.

At a glance

9 of 29 specs differ
Diameter
62MAS40.5mm
Monster42.4mm
Power Reserve
62MAS70h
Monster41h
Water Resistance
62MAS200m
Monster200m
MSRP
62MAS$1,200
Monster$550

Full specifications

Case

3 specs
Diameter
40.5mm
42.4mm
Thickness
13.2mm
13.4mm
Lug-to-Lug
47.6mm
49.4mm

Crystal & Dial

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

Movement

2 specs
Caliber
Seiko 6R35
Seiko 4R36
Power Reserve
70h
41h

Pricing

1 specs
MSRP
$1,200
$550
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