Hamilton Khaki Navy GMT AutovsJack Mason Strat-o-timer GMT

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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.

Khaki Navy GMT Auto

Strat-o-timer GMT
Diameter
43mm
42mm
Lug-to-Lug
52mm
49mm
lowest
Thickness
13.9mm
13.2mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
80h
highest
42h
MSRP
$1,525
$1,149
lowest
Movement
Hamilton H-14
Miyota 9075
Case
5 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Hamilton Khaki Navy GMT Auto for its true GMT function and 80-hour power reserve, with reviewers noting its value at its price point. The 43mm case is described as having a well-finished brushed exterior and a glossy black dial, complemented by smooth crowns and a comfortable rubber strap. Some owners report accuracy around -5 seconds per day, while others note the rotor sound can be loud. The slightly domed sapphire crystal lacks AR coating, and one owner noted minor cosmetic flaws on the case. Overall, owners and reviewers rate the Hamilton Khaki Navy GMT Auto highly for its robust GMT functionality and build quality relative to its cost.
The sapphire crystal is a strength cited by both reviewers. Both reviewers noted the ETA movement as reliable.
Owners widely praise the Jack Mason Strat-o-timer GMT for its exceptional value and traveler GMT functionality, citing the Miyota 9075 movement and impressive fit and finish, including screw-in bracelet pins, on-the-fly adjustment, sapphire crystal front and back, and a screw-down crown. The 7-link bracelet is frequently highlighted as a standout feature, with one owner calling it the best they have worn. Some reviewers note "chubby" hour markers and a bezel insert that one owner perceived as plastic, though another stated it is sapphire. Overall, owners rate the Jack Mason Strat-o-timer GMT highly for its impressive build quality and traveler GMT complication at its price point.
The Miyota 9075 true GMT movement is a consensus strength. The lume on the hands, dial, and bezel is also a shared positive feature. Reviewers did not reach a consensus on any weaknesses or points of disagreement.
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