Side by side

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

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

RN Quartz Divers Watch Mk.2, Matte Top
CWCRN Quartz Divers Watch Mk.2, Matte Top
MSRP $604
Prospex Rotocall
SeikoProspex Rotocall
MSRP $550

At a glance

11 of 29 specs differ
Diameter
RN Quartz Divers Watch Mk.2, Matte Top41mm
Prospex Rotocall37mm
Power Reserve
RN Quartz Divers Watch Mk.2, Matte Top40h
Prospex Rotocall40h
Water Resistance
RN Quartz Divers Watch Mk.2, Matte Top300m
Prospex Rotocall100m
MSRP
RN Quartz Divers Watch Mk.2, Matte Top$604
Prospex Rotocall$550

Full specifications

Case

5 specs
Category
Diver
Sport
Diameter
41mm
37mm
Thickness
12mm
10.6mm
Lug-to-Lug
47mm
43.5mm
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
AR Coating
Yes
Inner
Dial Color
CWC RN Quartz Divers Watch Mk.2, Matte Top (RN300-MT QS120)
Black
Lume
Super-LumiNova
None

Movement

1 specs
Caliber
Ronda 517
A824

Pricing

1 specs
MSRP
$604
$550

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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 Rotocall

Owners widely praise the Seiko Prospex Rotocall for its charismatic retro design and comfortable 37mm size, with many appreciating its space-faring heritage. However, multiple sources criticize its price point, suggesting it is too high for an all-digital quartz watch with features like a stamped clasp, mineral crystal, and standard quartz movement. Some owners also note drawbacks such as a flimsy battery mount and split pin bracelet construction. On balance, owners and reviewers find the Seiko Prospex Rotocall visually appealing and a faithful re-release, but its value proposition is frequently questioned due to its price.

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