Side by side

Seiko Prospex SPEEDTIMER MechanicalvsZelos Thresher 41 GMT

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

Prospex SPEEDTIMER Mechanical
SeikoProspex SPEEDTIMER Mechanical
MSRP $995
Thresher 41 GMT
ZelosThresher 41 GMT
MSRP $729

At a glance

14 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical39.5mm
Thresher 41 GMT41mm
Power Reserve
Prospex SPEEDTIMER Mechanical72h
Thresher 41 GMT40h
Water Resistance
Prospex SPEEDTIMER Mechanical200m
Thresher 41 GMT200m
MSRP
Prospex SPEEDTIMER Mechanical$995
Thresher 41 GMT$729

Full specifications

Case

5 specs
Category
Chronograph
GMT
Diameter
39.5mm
41mm
Thickness
12mm
11.5mm
Lug-to-Lug
44.5mm
41mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Damascus LE
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
6R55
Miyota 9075 GMT
Power Reserve
72h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$995
$729

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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 Mechanical

The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.

Zelos Thresher 41 GMT

Owners widely praise the Zelos Thresher 41 GMT for its creative design, titanium construction, and excellent lume. Some find the worldtimer bezel busy and the GMT function less easy to read, while others note the double Mother of Pearl dial's dynamic color shifts can be reflective in direct sun. The bezel-based world timer requires manual adjustment and allows for independent GMT use. Overall, owners rate the Zelos Thresher 41 GMT highly for its unique titanium build and striking dial at its price point.

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