Casio MDV-106 DurovsUnimatic Modello Quattro UT4-AA

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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.

MDV-106 Duro

Modello Quattro UT4-AA
Diameter
44.2mm
40mm
Lug-to-Lug
48.5mm
n/a
Thickness
12.1mm
2.8mm
lowest
Water Resistance
200m
300m
highest
MSRP
$85
lowest
$610
Movement
Quartz
Seiko VH31
Case
6 specsCrystal & Dial
3 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Casio MDV-106 Duro for its quality-to-price ratio and elegant design, often highlighting the Marlin logo and finishing. Many consider it a stunning first watch or a strong alternative to more expensive dive watches, with some noting its elegant diameter and build quality. One owner mentions the 44.2mm case size is preferred over a smaller sibling model. The Casio MDV-106 Duro is available for around $59-$70, and owners frequently suggest aftermarket strap or bracelet upgrades. Some owners flag the large size and weak lume as negatives. Overall, owners rate the Casio MDV-106 Duro highly for its design elegance and exceptional value.
The Casio MDV-106 Duro's quartz movement demonstrates excellent accuracy. Its stainless steel case features surprisingly good finishing for its price point.
The Unimatic Modello Quattro UT4-AA is praised for its rugged, no-nonsense tool watch aesthetic and its execution, with reviewers noting its familiar yet fresh design and military character enhanced by a fixed bezel and brushed finish. Owners appreciate its simple, brutalist design as a standout piece, though one owner initially found Unimatic's design overly minimalist with excessive empty dial space. The watch features a sandblasted gunmetal-coated finish and a Brinzio Green dial, with a slimmer 12.05mm case achieved with a Seiko VH31 quartz movement, making it a stylish, very wearable, and affordable option. Some owners find the strap stiff and difficult to tighten, expecting it to break in. The lugs' lack of downward curvature may cause it to sit flat on smaller or rounder wrists. Overall, owners and reviewers rate the Unimatic Modello Quattro UT4-AA highly for its rugged tool watch aesthetic and wearable, affordable quartz execution.
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