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

lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures

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 at true scale

Modello Quattro

Diameter

41mm

40mm

Lug-to-Lug

47mm

n/a

Thickness

12.7mm

n/a

Water Resistance

300m

300m

Power Reserve

n/a

38h

MSRP

$2,858

$1,050

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
22mm

Movement

2 specs
Type
Automatic
Meca-Quartz
Power Reserve
0h
38h

Pricing

1 specs
MSRP
$2,858
$1,050
Keep your wishlist and collection together in the appExplore the app

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

Owners and reviewers praise the Unimatic Modello Quattro for its rugged tool watch aesthetic and sandblasted titanium case, which is notably lightweight. The colorful California dial on some variants is described as striking and legible in bright light, while the satin-finished dial and textured strap on others create a stylish and robust integration. However, the 22mm strap can make the 40mm case feel larger on the wrist, and the strap itself may require effort to tighten properly. Accuracy ratings vary, with one source noting ±12 seconds per day for the Sellita SW200-1b movement. Overall, owners and reviewers find the Unimatic Modello Quattro to be a well-built and reasonably priced tool watch, with its lightweight titanium construction and distinctive dial designs being key highlights.