Side by side

Gruppo Gamma Vanguard WeatheredvsSeiko Prospex Sea 1965 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 Sea 1965 Heritage Diver's Watch

The Seiko Prospex Sea 1965 Heritage Diver's Watch is praised for its refined engineering and updated features, including a 300m water resistance and a 72-hour power reserve from the Caliber 6R55 movement in a 40mm case. Owners note its better build quality and interesting finishing with a mix of polished and brushed surfaces. The "Tranquil Teal" variant features a jewel-toned dial with a rippling-water pattern. However, some owners consider the price too high, and concerns exist regarding the accuracy of the 6R movements, with some reporting theirs run slow. One review notes a reflective dial that impacts legibility. On balance, owners and reviewers appreciate the Seiko Prospex Sea 1965 Heritage Diver's Watch for its refined design and improved specifications over previous generations, despite some reservations about movement accuracy and price.

At a glance

15 of 29 specs differ
Diameter
Vanguard Weathered42mm
Prospex Sea 1965 Heritage Diver's Watch40mm
Power Reserve
Vanguard Weathered42h
Prospex Sea 1965 Heritage Diver's Watch72h
Water Resistance
Vanguard Weathered100m
Prospex Sea 1965 Heritage Diver's Watch300m
MSRP
Vanguard Weathered$790
Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

7 specs
Category
Diver
Diameter
42mm
40mm
Thickness
12.6mm
13mm
Lug-to-Lug
49.5mm
46.4mm
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
6R55
Power Reserve
42h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$790
$1,300
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