BOLDR Supply Co. GMT Maasai MaravsJack 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.

GMT Maasai Mara

Strat-o-timer GMT
Diameter
40mm
40mm
Lug-to-Lug
46mm
lowest
47mm
Thickness
12.6mm
lowest
13.2mm
Water Resistance
200m
200m
Power Reserve
n/a
42h
MSRP
$469
lowest
$1,099
Movement
Seiko NH34
Miyota 9075
Case
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the BOLDR Supply Co. GMT Maasai Mara for its accessible GMT complication and the value it offers at its price point, with reviewers highlighting its 40mm stainless-steel case, unique California dial, and 200m water resistance as suitable for everyday wear and travel. Some owners appreciate its less polished case finish and a dial that feels less cluttered than alternatives, while others note its titanium construction contributes to a lightweight feel. One owner expresses curiosity about the long-term performance of the Seiko NH34 movement. On balance, owners and reviewers rate the BOLDR Supply Co. GMT Maasai Mara highly for its practical GMT functionality and appealing design at an accessible price.
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.
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