Side by side

Seiko Prospex SPEEDTIMER Mechanical ChronographvsZelos Thresher 41 GMT

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

Thresher 41 GMT
ZelosThresher 41 GMT
MSRP $729

At a glance

15 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical Chronograph42mm
Thresher 41 GMT41mm
Power Reserve
Prospex SPEEDTIMER Mechanical Chronograph45h
Thresher 41 GMT40h
Water Resistance
Prospex SPEEDTIMER Mechanical Chronograph100m
Thresher 41 GMT200m
MSRP
Prospex SPEEDTIMER Mechanical Chronograph$2,500
Thresher 41 GMT$729

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
42mm
41mm
Thickness
14.6mm
11.5mm
Lug-to-Lug
49.5mm
41mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m

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
8R48
Miyota 9075 GMT
Power Reserve
45h
40h
Jewels
34
25

Pricing

1 specs
MSRP
$2,500
$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 Chronograph

The Seiko Prospex SPEEDTIMER Mechanical Chronograph is praised for its handsome, heritage-inspired design with a clean, balanced dial and an external tachymeter bezel. Reviewers highlight the upgraded case and bracelet, noting improved comfort and good value for a well-designed chronograph with an in-house movement. The caliber 8R48 movement features a vertical clutch and column wheel with MEMS technology for durability and precision. Points to consider include the 4:30 date window and a 14.6mm thickness, while the 45-hour power reserve is noted as an area for potential improvement. On balance, reviewers find the Seiko Prospex SPEEDTIMER Mechanical Chronograph to be a solid offering with good value, particularly for its design and in-house movement.

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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