Side by side

CWC RN Quartz Divers Watch Mk.2, Matte TopvsLongines MASTER COLLECTION

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
MASTER COLLECTION
LonginesMASTER COLLECTION
MSRP $3,100

At a glance

21 of 29 specs differ
Diameter
RN Quartz Divers Watch Mk.2, Matte Top41mm
MASTER COLLECTION42mm
Power Reserve
RN Quartz Divers Watch Mk.2, Matte Top40h
MASTER COLLECTION
Water Resistance
RN Quartz Divers Watch Mk.2, Matte Top300m
MASTER COLLECTION30m
MSRP
RN Quartz Divers Watch Mk.2, Matte Top$604
MASTER COLLECTION$3,100

Full specifications

Case

8 specs
Category
Diver
Diameter
41mm
42mm
Thickness
12mm
9.64mm
Lug-to-Lug
47mm
49.6mm
Lug Width
20mm
21mm
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

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

Movement

7 specs
Caliber
Ronda 517
L888.5
Type
Quartz
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$604
$3,100

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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.

Longines MASTER COLLECTION

Owners and reviewers widely praise the Longines Master Collection for its excellent fit and finish, heritage-inspired design with features like Breguet numerals and leaf hands, and the value it offers, particularly for complications like chronographs and annual calendars. Specific models are noted for their beautiful dial execution, creamy white barleycorn or blue starburst finishes, and practical complications. Some owners find the Master Collection thin and dressy, appreciating its vintage aesthetic. However, drawbacks mentioned include a subdial potentially obscuring numerals, a bracelet lacking micro-adjustments causing fit issues for some, and a case finishing described as homogenous by one owner. The 30m water resistance on annual calendar models is considered light, and the crown and pushers on the moon phase chronograph are described as uninspiring. One owner reported a broken moon phase setting mechanism.

From video reviewers

The diamond hour markers are a notable strength. The movement accuracy was not discussed.

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