Side by side

CWC RN Quartz Divers Watch Mk.2, Matte TopvsTudor Black Bay Pro

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
Black Bay Pro
TudorBlack Bay Pro
MSRP $5,075

At a glance

21 of 29 specs differ
Diameter
RN Quartz Divers Watch Mk.2, Matte Top41mm
Black Bay Pro39mm
Power Reserve
RN Quartz Divers Watch Mk.2, Matte Top40h
Black Bay Pro70h
Water Resistance
RN Quartz Divers Watch Mk.2, Matte Top300m
Black Bay Pro200m
MSRP
RN Quartz Divers Watch Mk.2, Matte Top$604
Black Bay Pro$5,075

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
41mm
39mm
Thickness
12mm
14.6mm
Lug-to-Lug
47mm
46mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
CWC RN Quartz Divers Watch Mk.2, Matte Top (RN300-MT QS120)
Black
Indices
Applied
Lume
Super-LumiNova
None

Movement

8 specs
Caliber
Ronda 517
MT5652
Type
Quartz
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT

Pricing

1 specs
MSRP
$604
$5,075

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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.

Tudor Black Bay Pro

The Tudor Black Bay Pro is praised for its handsome design, high-quality finishing, and 200-meter water resistance. Reviewers note its 39mm case size contributes to comfortable wear, though its 14.6mm thickness is considered substantial due to case design and movement height, giving it a satisfyingly chunky sport watch presence. Some find the three snowflake hands a minor aesthetic quibble. On balance, reviewers consider the Tudor Black Bay Pro a nice watch for enthusiasts at an attractive price point, appreciating its fixed steel bezel and contrasting date wheel.

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