Side by side

Citizen Promaster Diver AutomaticvsSeiko 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.

Citizen Promaster Diver Automatic

Owners widely praise the Citizen Promaster Diver Automatic for its lightweight titanium build, comfortable wear, and good specifications at its price point, with one owner highlighting its accuracy and dynamic dial made from recycled materials. Some users find the bezel action spongy and the bracelet subpar, while others note the overall finish is basic due to the brushed titanium. A reviewer also points out a preference for sapphire crystal and ceramic bezel inserts. On balance, owners rate the Citizen Promaster Diver Automatic highly for its value proposition as an affordable, lightweight, and accurate dive watch.

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

12 of 29 specs differ
Diameter
Promaster Diver Automatic44mm
Prospex Sea 1965 Heritage Diver's Watch40mm
Power Reserve
Promaster Diver Automatic
Prospex Sea 1965 Heritage Diver's Watch72h
Water Resistance
Promaster Diver Automatic200m
Prospex Sea 1965 Heritage Diver's Watch300m
MSRP
Promaster Diver Automatic$469
Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

4 specs
Diameter
44mm
40mm
Thickness
0mm
13mm
Lug-to-Lug
0mm
46.4mm
Water Resistance
200m
300m

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
Blue
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
8204
6R55
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$469
$1,300
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