Side by side

CWC RN Quartz Divers Watch Mk.2, Matte TopvsSeiko 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.

CWC RN Quartz Divers Watch Mk.2, Matte Top

Owners widely praise the CWC RN Quartz Divers Watch Mk.2, Matte Top for its excellent matte case finishing, precise seconds hand alignment, and dial reminiscent of vintage military watches. The Mk.2 upgrades, including a sapphire crystal, improved lume, and a precise 120-click bezel described as perfection with no play, are consistently highlighted as significant improvements over earlier versions. One owner noted the quartz movement gained 8 seconds over several months. Overall, owners rate the CWC RN Quartz Divers Watch Mk.2, Matte Top highly for its solid construction, military significance, and terrific value.

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
RN Quartz Divers Watch Mk.2, Matte Top41mm
Prospex Sea 1965 Heritage Diver's Watch40mm
Power Reserve
RN Quartz Divers Watch Mk.2, Matte Top
Prospex Sea 1965 Heritage Diver's Watch72h
Water Resistance
RN Quartz Divers Watch Mk.2, Matte Top300m
Prospex Sea 1965 Heritage Diver's Watch300m
MSRP
RN Quartz Divers Watch Mk.2, Matte Top$604
Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

3 specs
Diameter
41mm
40mm
Thickness
0mm
13mm
Lug-to-Lug
47mm
46.4mm

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
CWC RN Quartz Divers Watch Mk.2, Matte Top (RN300-MT QS120)
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Ronda 517
6R55
Type
Quartz
Automatic
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$604
$1,300
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