Side by side

Seiko 62MASvsZelos Spearfish GMT

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

62MAS
Seiko62MAS
MSRP $1,200
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

13 of 29 specs differ
Diameter
62MAS40.5mm
Spearfish GMT40mm
Power Reserve
62MAS70h
Spearfish GMT40h
Water Resistance
62MAS200m
Spearfish GMT200m
MSRP
62MAS$1,200
Spearfish GMT$999

Full specifications

Case

5 specs
Category
Diver
GMT
Diameter
40.5mm
40mm
Thickness
13.2mm
13mm
Lug-to-Lug
47.6mm
40mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

4 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Frost
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
6R35
Sellita SW330-2
Power Reserve
70h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$1,200
$999

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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.

Zelos Spearfish GMT

The Zelos Spearfish GMT is widely praised for its exceptional value, with reviewers highlighting its superb finishing, flawless machining, and a tool-less micro-adjustment clasp that exceeds its price point. It features a La Joux-Perret G100 movement with a 68-hour power reserve, achieving an average accuracy of +2.6 seconds per day, or a Miyota 9075 movement offering flier-style GMT functionality. The 40mm case and bidirectional 48-click ceramic bezel are well-executed, though one reviewer noted a minor compromise in the end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and value proposition.

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