Side by side

CWC RN Quartz Divers Watch Mk.2, Matte TopvsGrand Seiko SBGW291

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
SBGW291
Grand SeikoSBGW291
MSRP $5,300

At a glance

12 of 29 specs differ
Diameter
RN Quartz Divers Watch Mk.2, Matte Top41mm
SBGW29136.5mm
Power Reserve
RN Quartz Divers Watch Mk.2, Matte Top40h
SBGW29172h
Water Resistance
RN Quartz Divers Watch Mk.2, Matte Top300m
SBGW291100m
MSRP
RN Quartz Divers Watch Mk.2, Matte Top$604
SBGW291$5,300

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
41mm
36.5mm
Thickness
12mm
11.6mm
Lug-to-Lug
47mm
42.7mm
Lug Width
20mm
18mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
CWC RN Quartz Divers Watch Mk.2, Matte Top (RN300-MT QS120)
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Ronda 517
9S64
Type
Quartz
Manual
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$604
$5,300

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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.

Grand Seiko SBGW291

The Grand Seiko SBGW291 is praised for its charming 36.5mm size and a silver sunburst dial with sharply chamfered indices and dauphine hands. Reviewers note the hallmark Zaratsu polished surfaces and the hand-wound 9S64 movement, which provides accuracy between -3 to +5 seconds per day and a three-day power reserve. The case wears wonderfully on smaller wrists. However, its €5,200 price is considered high by one reviewer, especially without a steel bracelet, suggesting vintage options might be more appealing. Overall, reviewers consider the Grand Seiko SBGW291 a valid option for a simpler, smaller Grand Seiko experience, with its wearability and finishing being key strengths.

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