Side by side

Sinn 556 I WTvsCWC RN Automatic Divers Watch Mk.2

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.

Sinn 556 I WT

The Sinn 556 I WT is seen as a good value, though some owners find its stark black dial and white markers visually flat compared to more textured dials. While its minimalist design, screw-down crown, and water resistance are praised, some find the two-dimensional dial lacks visual substance. Overall, owners rate the Sinn 556 I WT well for its value and solid specifications, despite some finding its austere dial design polarizing.

From video reviewers

The stark white dial offers excellent legibility. Lume application on the hands was inconsistent.

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.

At a glance

16 of 29 specs differ
Diameter
556 I WT38.5mm
RN Automatic Divers Watch Mk.241mm
Power Reserve
556 I WT38h
RN Automatic Divers Watch Mk.2
Water Resistance
556 I WT200m
RN Automatic Divers Watch Mk.2300m
MSRP
556 I WT$2,106
RN Automatic Divers Watch Mk.2$1,249

Full specifications

Case

7 specs
Category
Tool
Diver
Diameter
38.5mm
41mm
Thickness
11mm
0mm
Lug-to-Lug
47mm
Finish
satinized
Water Resistance
200m
300m
Caseback

Crystal & Dial

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

Movement

3 specs
Beat Rate
28,800 vph
0 vph
Power Reserve
38h
0h
Jewels
26
0

Pricing

1 specs
MSRP
$2,106
$1,249
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