Side by side

Gruppo Gamma Vanguard WeatheredvsSeiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

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 Marinemaster Marinemaster 1968 Heritage Diver's Watch

The Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch is praised for its premium finishing, often described as Zaratsu-like, and robust build quality, with owners finding its 42mm case and 4 o'clock crown appealing for wearability. Some reviewers note its secondary GMT function and quieter bezel clicks may not suit all preferences, while one owner reported bezel misalignment issues. The watch is powered by the Caliber 8L45 automatic movement, offering a 72-hour power reserve and an accuracy rating of -5/+10 seconds per day, though some owners question its value proposition at its price point. On balance, owners and reviewers rate the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch highly for its exceptional finishing and refined tool-like aesthetic.

At a glance

15 of 29 specs differ
Diameter
Vanguard Weathered42mm
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
Power Reserve
Vanguard Weathered42h
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch50h
Water Resistance
Vanguard Weathered100m
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
MSRP
Vanguard Weathered$790
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$2,900

Full specifications

Case

7 specs
Category
Diver
Diameter
42mm
42.6mm
Thickness
12.6mm
13.4mm
Lug-to-Lug
49.5mm
49.3mm
Lug Width
22mm
20mm
Finish
Weathered
Brushed and polished
Water Resistance
100m
300m

Crystal & Dial

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

Movement

3 specs
Caliber
Miyota 9039
8L35
Power Reserve
42h
50h
Jewels
25
26

Pricing

1 specs
MSRP
$790
$2,900
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