Side by side

Seiko Prospex SeavsZelos Spearfish GMT

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

Prospex Sea
SeikoProspex Sea
MSRP $1,500
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

13 of 29 specs differ
Diameter
Prospex Sea43.5mm
Spearfish GMT40mm
Power Reserve
Prospex Sea70h
Spearfish GMT40h
Water Resistance
Prospex Sea200m
Spearfish GMT200m
MSRP
Prospex Sea$1,500
Spearfish GMT$999

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
43.5mm
40mm
Thickness
13.3mm
13mm
Lug-to-Lug
51mm
40mm
Lug Width
22mm
20mm
Material
Titanium
316L Stainless Steel

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Frost
Lume
LumiBrite on hands and index(es)
None

Movement

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

Pricing

1 specs
MSRP
$1,500
$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 Prospex Sea

Seiko Prospex Sea owners and reviewers praise its Marinemaster-style aesthetic, excellent case finishing, and impressive LumiBrite lume. The watch is powered by the 6R15 movement with a 50-hour power reserve and comes with both a steel bracelet and a silicone strap. Some owners find the Seiko Prospex Sea to be a great value and a suitable first "proper" watch, while others report it is uncomfortably big, thick, and heavy on smaller wrists. Reviewers note the GMT function is secondary with a less prominent scale, and the bezel's quieter clicks may not appeal to all. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its classic design and finishing at its price point.

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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