Side by side

CWC RN Quartz Divers Watch Mk.2, Matte TopvsGrand Seiko SBGX353

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
SBGX353
Grand SeikoSBGX353
MSRP $4,100

At a glance

10 of 29 specs differ
Diameter
RN Quartz Divers Watch Mk.2, Matte Top41mm
SBGX35334mm
Power Reserve
RN Quartz Divers Watch Mk.2, Matte Top40h
SBGX35340h
Water Resistance
RN Quartz Divers Watch Mk.2, Matte Top300m
SBGX35330m
MSRP
RN Quartz Divers Watch Mk.2, Matte Top$604
SBGX353$4,100

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
41mm
34mm
Thickness
12mm
10.7mm
Lug-to-Lug
47mm
41.5mm
Lug Width
20mm
18mm
Water Resistance
300m
30m

Crystal & Dial

2 specs
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
9F61

Pricing

1 specs
MSRP
$604
$4,100

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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 SBGX353

The Grand Seiko SBGX353 is widely praised for its mesmerizing "Skyflake" textured blue dial, considered by owners to be "perfect art." Reviewers and owners alike highlight the watch's elegant 34mm case size and the advanced 9F61 quartz movement, noting its exceptional ±10 seconds per year accuracy and precise second-hand alignment. Some owners find the dial's aesthetic appeal slightly diminished when worn compared to other options, and one owner replaced the quick-release buckle for a Hirsch clasp. Overall, owners rate the Grand Seiko SBGX353 highly for its exquisite dial finishing and the precision of its quartz movement at its price point.

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