Side by side

Jack Mason Strat-o-timer GMTvsUnimatic Modello Quattro UC4 Classic Time Only

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

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What people say

Owners + reviewers, side by side

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

Jack Mason Strat-o-timer GMT

Owners widely praise the Jack Mason Strat-o-timer GMT for its impressive fit and finish, excellent value, and true traveler GMT complication, especially considering its price point. Reviewers and owners alike highlight the comfortable 40mm tonneau case, sapphire crystal bezel, and retro styling. Some owners note the hour markers are "chubby" but do not affect legibility, and the strap ends are slightly large. One owner describes the 7-link bracelet as rivaling luxury brands. On balance, owners and reviewers rate the Jack Mason Strat-o-timer GMT highly for its build quality and value proposition.

From video reviewers

The Miyota 9075 true GMT movement is a consistent strength. Reviewers noted the exceptional lightness and comfort due to Grade 2 titanium construction. Opinions on whether further refinements are needed were not shared.

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

10 of 29 specs differ
Diameter
Strat-o-timer GMT40mm
Modello Quattro UC4 Classic Time Only40mm
Power Reserve
Strat-o-timer GMT42h
Modello Quattro UC4 Classic Time Only
Water Resistance
Strat-o-timer GMT200m
Modello Quattro UC4 Classic Time Only300m
MSRP
Strat-o-timer GMT$1,099
Modello Quattro UC4 Classic Time Only$655

Full specifications

Case

5 specs
Thickness
13.2mm
0mm
Lug-to-Lug
47mm
0mm
Lug Width
20mm
0mm
Material
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Dial Color
Matte black

Movement

2 specs
Caliber
Miyota 9075
Seiko NH35
Power Reserve
42h
0h

Pricing

1 specs
MSRP
$1,099
$655
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