Side by side

Seiko Prospex SPEEDTIMER MechanicalvsZelos GT

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

Prospex SPEEDTIMER Mechanical
SeikoProspex SPEEDTIMER Mechanical
MSRP $995
GT
ZelosGT
MSRP $499

At a glance

14 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical39.5mm
GT42mm
Power Reserve
Prospex SPEEDTIMER Mechanical72h
GT40h
Water Resistance
Prospex SPEEDTIMER Mechanical200m
GT100m
MSRP
Prospex SPEEDTIMER Mechanical$995
GT$499

Full specifications

Case

6 specs
Diameter
39.5mm
42mm
Thickness
12mm
10.8mm
Lug-to-Lug
44.5mm
42mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
6R55
Miyota 9133
Power Reserve
72h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$995
$499

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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 GT

The Zelos GT is lauded for its value and bold design, with owners highlighting the cool power reserve meter and superb 3-point micro-adjust bracelet. Some owners find the case and lugs could hug the wrist better, and the bracelet is noted as being quite long, requiring significant link removal for a 7.1-inch wrist. The dark green dial, while inspired by Lamborghini, is described as appearing mostly black. Overall, owners rate the Zelos GT highly for its value and the quality of its bracelet at the price point.

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