Side by side

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

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 CHRONOGRAPH
LonginesMASTER COLLECTION CHRONOGRAPH
MSRP $3,800

At a glance

20 of 29 specs differ
Diameter
RN Quartz Divers Watch Mk.2, Matte Top41mm
MASTER COLLECTION CHRONOGRAPH44mm
Power Reserve
RN Quartz Divers Watch Mk.2, Matte Top40h
MASTER COLLECTION CHRONOGRAPH66h
Water Resistance
RN Quartz Divers Watch Mk.2, Matte Top300m
MASTER COLLECTION CHRONOGRAPH30m
MSRP
RN Quartz Divers Watch Mk.2, Matte Top$604
MASTER COLLECTION CHRONOGRAPH$3,800

Full specifications

Case

8 specs
Category
Diver
Chronograph
Diameter
41mm
44mm
Thickness
12mm
14.4mm
Lug-to-Lug
47mm
51.8mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
CWC RN Quartz Divers Watch Mk.2, Matte Top (RN300-MT QS120)
Blue
Indices
Applied
Applied indexes

Movement

7 specs
Caliber
Ronda 517
L688.5
Type
Quartz
Automatic
Power Reserve
40h
66h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, small seconds at 9 o'clock and date

Pricing

1 specs
MSRP
$604
$3,800

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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 CHRONOGRAPH

Owners widely praise the Longines MASTER COLLECTION CHRONOGRAPH for its classic styling and excellent fit and finish. The dial is described as mesmerizing and legible, balancing class and complexity, contributing to comfortable wearability. One owner finds the column wheel chronograph and moon phase complication a good value around $2k, though notes the case finishing can appear homogenous and the chronograph hour counter sometimes does not reset perfectly. A specific variant's 3 bar water resistance is noted as a limitation, restricting it to less demanding environments. One owner identified the movement as a Valjoux 7751. Overall, owners rate the Longines MASTER COLLECTION CHRONOGRAPH highly for its attractive dial and value proposition, despite minor finishing and water resistance caveats.

From video reviewers

The polished steel case finishing and the elegant dial with Roman numerals and complications are praised. The bracelet's perceived lack of solid links and the overall high polish of the case were noted as potential drawbacks. Reviewers disagreed on the value proposition compared to other chronographs in the market.

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