Side by side

CWC RN Quartz Divers Watch Mk.2, Matte TopvsSpinnaker Dumas Automatic

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
Dumas Automatic
SpinnakerDumas Automatic
MSRP $239

At a glance

11 of 29 specs differ
Diameter
RN Quartz Divers Watch Mk.2, Matte Top41mm
Dumas Automatic44mm
Power Reserve
RN Quartz Divers Watch Mk.2, Matte Top40h
Dumas Automatic40h
Water Resistance
RN Quartz Divers Watch Mk.2, Matte Top300m
Dumas Automatic300m
MSRP
RN Quartz Divers Watch Mk.2, Matte Top$604
Dumas Automatic$239

Full specifications

Case

5 specs
Diameter
41mm
44mm
Thickness
12mm
15mm
Lug-to-Lug
47mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

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

Movement

2 specs
Caliber
Ronda 517
SII NH35A
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$604
$239

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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.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

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