Side by side

CWC RN Automatic Divers Watch Mk.2vsSinn EZM 3 S

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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 Automatic Divers Watch Mk.2

Owners widely praise the CWC RN Diver for its build quality, comfortable wearability, and classic design with desirable brand heritage, suitable for diving. Some owners consider it a favorite, appreciating its case wear and aging tritium as a classic replacement for previous military issue watches. However, a common complaint across multiple sources is the fixed spring bars, which limit strap options, and some find the watch overpriced for its features, particularly when compared to other military-style watches or when noting specific branding text. One owner wishes CWC offered a smaller diver size. On balance, owners rate the CWC RN Diver highly for its utilitarian capabilities and historical connection, despite concerns about strap versatility and value.

Sinn EZM 3 S

The Sinn EZM 3 S is a tactical dive watch built for extreme conditions, featuring a 500-meter depth rating and Tegiment technology for enhanced scratch resistance. It is powered by a Sellita SW200-1 movement, offering a 38-hour power reserve. On balance, reviewers highlight its robust build and purpose-driven design for demanding environments.

At a glance

15 of 29 specs differ
Diameter
RN Automatic Divers Watch Mk.241mm
EZM 3 S41mm
Power Reserve
RN Automatic Divers Watch Mk.2
EZM 3 S38h
Water Resistance
RN Automatic Divers Watch Mk.2300m
EZM 3 S500m
MSRP
RN Automatic Divers Watch Mk.2$1,249
EZM 3 S$3,046

Full specifications

Case

5 specs
Thickness
0mm
12.3mm
Lug-to-Lug
47mm
Finish
bead-blasted, black
Water Resistance
300m
500m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Dial Color
CWC RN Automatic Divers Watch Mk.2, Stainless Steel (RN300-MT AS120)
Black
Indices
Lume
Super-LumiNova
Luminescent

Movement

4 specs
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
38h
Jewels
0
26
Complications
None
Date

Pricing

1 specs
MSRP
$1,249
$3,046
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when CWC RN Automatic Divers Watch Mk.2 vs Sinn EZM 3 S gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.