CWC (Cabot Watch Company) RN81 Diver Automatic WatchvsUnimatic Modello Quattro U4S-WMB

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

CWC (Cabot Watch Company) RN81 Diver Automatic Watch at true scale

RN81 Diver Automatic Watch

Unimatic Modello Quattro U4S-WMB at true scale

Modello Quattro U4S-WMB

Diameter

41mm

40mm

Lug-to-Lug

47mm

n/a

Thickness

12.7mm

n/a

Water Resistance

300m

300m

Power Reserve

n/a

41h

MSRP

$2,858

$1,660

lowest

Movement

Sellita SW200-1

Sellita SW200-1

Case

4 specs
Diameter
41mm
40mm
Thickness
12.7mm
n/a
Lug-to-Lug
47mm
n/a
Lug Width
20mm
n/a

Movement

1 specs
Power Reserve
0h
41h

Pricing

1 specs
MSRP
$2,858
$1,660
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

CWC (Cabot Watch Company) RN81 Diver Automatic Watch

Owners widely praise the CWC (Cabot Watch Company) RN81 Diver Automatic Watch for its robust build and preferred dial layout, featuring an iconic big triangle and sword hands reminiscent of the 1980 original. The bezel action is described as nice and chunky, and the case wears beautifully. Some reviewers note the polished case sides and "faux patina" lume color as unusual or slightly glossy for a military-issued watch, and fixed springbars are flagged as a potential drawback. Accuracy varies, with one owner reporting it running 3 seconds fast per 24 hours. On balance, owners and reviewers appreciate the CWC (Cabot Watch Company) RN81 Diver Automatic Watch for its faithful homage design and solid construction, despite some reservations about its finishing and price point.

Unimatic Modello Quattro U4S-WMB

The Unimatic Modello Quattro U4S-WMB is praised for its familiar yet fresh minimalist design with a sturdy 40mm case and brushed finish that fits its military character. Reviewers note it is slightly thicker than the Modello Uno due to a thicker sapphire crystal and a fixed bezel. One source mentions an average accuracy of +/-12 seconds per day for a variant with the Sellita SW200-1 b movement. On balance, reviewers find the Unimatic Modello Quattro U4S-WMB appealing for its design and build, though some desire a smaller case size and note a lack of distinction compared to other models.