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CWC RN Automatic Divers Watch Mk.2vsSinn U2 S (EZM 5)

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

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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 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 U2 S (EZM 5)

The Sinn U2 S (EZM 5) features good, solid lume that remains readable throughout the night, though some owners find its initial brightness less intense than other dive watches. Reviewers highlight its excellent legibility due to a high-contrast dial and large hands, housed in robust German submarine steel with a scratch-resistant Tegiment-treated bezel. On balance, owners and reviewers appreciate the Sinn U2 S (EZM 5) for its robust construction and clear dial legibility.

At a glance

18 of 29 specs differ
Diameter
RN Automatic Divers Watch Mk.241mm
U2 S (EZM 5)44mm
Power Reserve
RN Automatic Divers Watch Mk.2
U2 S (EZM 5)48h
Water Resistance
RN Automatic Divers Watch Mk.2300m
U2 S (EZM 5)2,000m
MSRP
RN Automatic Divers Watch Mk.2$1,249
U2 S (EZM 5)$3,802

Full specifications

Case

7 specs
Diameter
41mm
44mm
Thickness
0mm
15.5mm
Lug-to-Lug
47mm
Lug Width
20mm
22mm
Finish
black
Water Resistance
300m
2000m
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

5 specs
Caliber
Sellita SW200-1
Sellita SW330-2
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
48h
Jewels
0
25
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$1,249
$3,802
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