Jack Mason Strat-o-timer GMTvsLorier Hyperion SII
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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.
Strat-o-timer GMT
Hyperion SII
Diameter
40mm
39mm
Lug-to-Lug
47mm
n/a
Thickness
13.2mm
n/a
Water Resistance
200m
200m
Power Reserve
42h
n/a
MSRP
$1,099
$699
lowest
Movement
Miyota 9075
Automatic
Case
3 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners and reviewers widely praise the Jack Mason Strat-o-timer GMT for its excellent value and impressive fit and finish, particularly noting the quality of the 7-link bracelet and the scratch-resistant sapphire bezel insert. The watch is recognized for offering a true traveler's GMT complication with the Miyota 9075 movement at a competitive price point, with many appreciating its comfortable 40mm tonneau case and vintage styling. Some owners find the hour markers to be a bit chunky, and one user noted slightly scratchy crown operation. Overall, owners rate the Jack Mason Strat-o-timer GMT highly for its exceptional value and build quality at its price point.
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.
Owners widely praise the Lorier Hyperion SII for its vintage aesthetic, with specific mentions of the glossy black dial and tasteful text. The finishing on the case is also highlighted as excellent, and the bracelet is found to be comfortable. One owner notes the Miyota 9075 movement as a standout feature for a GMT watch under $800. However, drawbacks include the Hesalite crystal, which can warp the view at the dial's edge and scratches easily, and the GMT hand is described as small and difficult to spot. One user also reported the winding action as not smooth with significant crown resistance. Overall, owners and reviewers rate the Lorier Hyperion SII highly for its vintage charm and value, particularly for its GMT functionality and case finishing.
The GMT functionality is a key strength. The Miyota 9075 movement's 42-hour power reserve is a drawback. Reviewers disagreed on the value proposition at the price point.
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