Side by side

Gruppo Gamma Vanguard WeatheredvsSeiko Prospex SPEEDTIMER Mechanical

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Gruppo Gamma Vanguard Weathered

The satin-finished steel case is well-executed and aesthetically pleasing. The watch's lumières de nuit are not particularly bright, which might be a drawback for some users. Reviewers disagree on the watch's originality, with one reviewer finding it pleasing in-person and another describing it as decidedly derivative.

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.

At a glance

15 of 29 specs differ
Diameter
Vanguard Weathered42mm
Prospex SPEEDTIMER Mechanical39.5mm
Power Reserve
Vanguard Weathered42h
Prospex SPEEDTIMER Mechanical72h
Water Resistance
Vanguard Weathered100m
Prospex SPEEDTIMER Mechanical200m
MSRP
Vanguard Weathered$790
Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

7 specs
Category
Chronograph
Diameter
42mm
39.5mm
Thickness
12.6mm
12mm
Lug-to-Lug
49.5mm
44.5mm
Lug Width
22mm
20mm
Finish
Weathered
Water Resistance
100m
200m

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Forged Carbon
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Miyota 9039
Seiko 6R55
Power Reserve
42h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$790
$995
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