Side by side

Sheffield 1AvsUnimatic Modello Quattro UC4 Classic Time Only

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

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

Sheffield 1A

Owners widely praise the Sheffield 1A for its superb quality, sturdiness, and value, with many finding its blue dial appealing and its construction more substantial than comparable models. One owner noted expensive shipping fees as a drawback, and another suggested the bezel action could be crisper. Overall, owners consider the Sheffield 1A a no-brainer for its affordability and quality.

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

11 of 29 specs differ
Diameter
1A40mm
Modello Quattro UC4 Classic Time Only40mm
Power Reserve
1A
Modello Quattro UC4 Classic Time Only
Water Resistance
1A200m
Modello Quattro UC4 Classic Time Only300m
MSRP
1A$223
Modello Quattro UC4 Classic Time Only$655

Full specifications

Case

6 specs
Category
Diver
Thickness
12.8mm
0mm
Lug-to-Lug
46mm
0mm
Lug Width
20mm
0mm
Material
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Dial Color
White/Blue
Matte black
Lume
Swiss blue lume
None

Movement

1 specs
Power Reserve
0h

Pricing

1 specs
MSRP
$223
$655
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