Side by side

Sinn 556 I WTvsCWC RN81 Clearance Diver Automatic Watch

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.

CWC RN81 Clearance Diver Automatic Watch

Owners widely praise the CWC diver for its historical significance, build quality, and tool-watch nature, with many finding it comfortable and a go-to piece. Some owners appreciate the fixed springbars for NATO straps and the option of various case finishes. However, the CWC is frequently considered overpriced, with buyers paying a premium for the brand's history and reissue status, especially for the automatic version. The acrylic bezel's durability and the "faux patina" lume color are noted concerns for some. On balance, owners and reviewers find the CWC diver to be a well-built, historically significant tool watch, though many question its value proposition at its price point.

At a glance

16 of 29 specs differ
Diameter
556 I WT38.5mm
RN81 Clearance Diver Automatic Watch41mm
Power Reserve
556 I WT38h
RN81 Clearance Diver Automatic Watch
Water Resistance
556 I WT200m
RN81 Clearance Diver Automatic Watch300m
MSRP
556 I WT$2,106
RN81 Clearance Diver Automatic Watch$1,875

Full specifications

Case

7 specs
Category
Tool
Diver
Diameter
38.5mm
41mm
Thickness
11mm
12.7mm
Lug-to-Lug
47mm
Finish
satinized
Water Resistance
200m
300m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Dial Color
Red
CWC RN81 Clearance Diver Automatic Watch
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
$1,875
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