Side by side

Seiko Prospex SPEEDTIMERvsZelos Spearfish GMT

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

Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $3,000
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

14 of 29 specs differ
Diameter
Prospex SPEEDTIMER42.5mm
Spearfish GMT40mm
Power Reserve
Prospex SPEEDTIMER45h
Spearfish GMT40h
Water Resistance
Prospex SPEEDTIMER100m
Spearfish GMT200m
MSRP
Prospex SPEEDTIMER$3,000
Spearfish GMT$999

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
42.5mm
40mm
Thickness
15.1mm
13mm
Lug-to-Lug
50mm
40mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m

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 and index(es)
None

Movement

3 specs
Caliber
8R46
Sellita SW330-2
Power Reserve
45h
40h
Jewels
34
25

Pricing

1 specs
MSRP
$3,000
$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 SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER for its attractive vintage-inspired design and compact 39mm size, with one owner finding the red dial unique and gorgeous. Reviewers and owners note the solar-powered quartz movement, with one owner considering $700 expensive for this specification and another wishing for a thinner case. The SPEEDTIMER is described as a sturdy and reliable everyday watch, though one owner questioned its resale value. Overall, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER for its stylish, compact design and solar functionality, despite some finding the price point and case thickness slightly high.

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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