Bremont S500vsUnimatic Modello Quattro UT4 Toolwatch Time Only (40mm)
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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.

S500

Modello Quattro UT4 Toolwatch Time Only (40mm)
Diameter
43mm
40mm
Water Resistance
500m
highest
300m
MSRP
$4,395
$515
lowest
Movement
Bremont BE-92AE
Seiko VH31
Case
6 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Bremont S500 is praised for its excellent Super-LumiNova lume, refined finishing on its 43mm Trip-Tick case, and scratch-resistant B-EBE2000® treated case. Owners find the soft rubber strap comfortable and appreciate the retro design and sunburst dial, with some noting the 43mm case wears smaller due to short lugs. However, some reviewers flag legibility issues due to the dark dial and hands, and the 16mm to 16.5mm thickness is considered less practical for daily wear by some. Criticisms also include the lack of a dive suit extension on the bracelet and understated bezel markings. On balance, owners and reviewers appreciate the Bremont S500 for its robust build and comfortable wearability, though its practicality for daily wear and legibility are points of contention.
The Unimatic Modello Quattro UT4 Toolwatch Time Only (40mm) is widely praised for its ultra-rugged, durable construction and Unimatic's signature utilitarian aesthetic, meeting MIL-STD-810 standards. Reviewers highlight its grab-and-go convenience and value as a tough quartz option. Some sources note a slimmer, more wearable 12.05mm case profile, attributed to the Seiko VH31 quartz movement, which is considered perfect for its set-and-forget nature. However, one reviewer found its new dial design too conventional, noting a resemblance to other watches, and another suggested solid quartz watches can be found for less. Overall, owners and reviewers rate the Unimatic Modello Quattro UT4 Toolwatch Time Only (40mm) highly for its robust build and practical quartz convenience at a good value.
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