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CWC RN Automatic Divers Watch Mk.2vsUnimatic Modello Quattro UC4 Classic Time Only

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.

Unimatic Modello Quattro UC4 Classic Time Only

The Unimatic Modello Quattro UC4 Classic Time Only features a robust 40mm black DLC case, 13.7mm to 13.9mm thick, with drilled lugs and a fixed steel bezel that balances beefiness with wearability. Reviewers note improved crown action and refinement over earlier models, with a flat sapphire crystal. Its sandwich dial reveals Super-LumiNova BG W9 beneath cut-out indexes, paired with a Seiko NH35A automatic movement. While the movement is considered robust and reliable, one reviewer expressed a preference for a Sellita caliber given the watch's heft. On balance, reviewers find the Unimatic Modello Quattro UC4 Classic Time Only to be a well-refined and wearable tool watch with a distinct military character.

At a glance

10 of 29 specs differ
Diameter
RN Automatic Divers Watch Mk.241mm
Modello Quattro UC4 Classic Time Only40mm
Power Reserve
RN Automatic Divers Watch Mk.2
Modello Quattro UC4 Classic Time Only
Water Resistance
RN Automatic Divers Watch Mk.2300m
Modello Quattro UC4 Classic Time Only300m
MSRP
RN Automatic Divers Watch Mk.2$1,249
Modello Quattro UC4 Classic Time Only$655

Full specifications

Case

5 specs
Category
Diver
Diameter
41mm
40mm
Lug-to-Lug
47mm
0mm
Lug Width
20mm
0mm
Material
Stainless Steel

Crystal & Dial

3 specs
Crystal
Sapphire
Dial Color
CWC RN Automatic Divers Watch Mk.2, Stainless Steel (RN300-MT AS120)
Matte black
Lume
Super-LumiNova
None

Movement

1 specs
Caliber
Sellita SW200-1
Seiko NH35

Pricing

1 specs
MSRP
$1,249
$655
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