Side by side

Jack Mason Strat-o-timer GMTvsSeiko Presage Sharp Edged Series

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 and reviewers widely praise the Jack Mason Strat-o-timer GMT for its exceptional value and traveler GMT functionality powered by the Miyota 9075 movement. Specific strengths highlighted include impressive fit and finish, screw-in bracelet pins, on-the-fly adjustment, sapphire crystal front and back, a screw-down crown, and a lumed bezel. The 7-link bracelet, with its micro-adjust buckle offering 9 points of adjustment, is frequently cited as a standout feature, with some owners comparing it favorably to much more expensive watches. Some reviewers note "chubby" hour markers and a potentially plastic bezel insert, though others state it is sapphire. The watch is praised for its comfortable 42mm case and vintage aesthetic. Overall, owners rate the Jack Mason Strat-o-timer GMT highly for its outstanding value and well-executed traveler GMT complication.

From video reviewers

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.

Seiko Presage Sharp Edged Series

The Seiko Presage Sharp Edged Series is widely lauded for its sharp, angular case design and the intricate finishing of its dials, often featuring traditional Japanese motifs like the Asanoha pattern. Owners and reviewers consistently highlight the beautiful interplay of polished and hairline finishes on the case and bracelet, the use of sapphire crystals, and a robust 100m water resistance. The collection is powered by reliable in-house automatic movements, with many models featuring the 6R35 movement offering a 70-hour power reserve. Some specific models are noted for their refined finishing and updated case facets, while the 24-hour sub-dial on certain variants is considered a niche complication. Overall, owners and reviewers rate the Seiko Presage Sharp Edged Series highly for its striking design and quality finishing at its price point.

At a glance

14 of 29 specs differ
Diameter
Strat-o-timer GMT42mm
Presage Sharp Edged Series40.2mm
Power Reserve
Strat-o-timer GMT42h
Presage Sharp Edged Series45h
Water Resistance
Strat-o-timer GMT200m
Presage Sharp Edged Series100m
MSRP
Strat-o-timer GMT$1,149
Presage Sharp Edged Series$1,100

Full specifications

Case

7 specs
Category
Dress
Diameter
42mm
40.2mm
Thickness
13.2mm
12.2mm
Lug-to-Lug
49mm
47.4mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Dial Color
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Miyota 9075
Seiko 6R21
Power Reserve
42h
45h
Jewels
0
29

Pricing

1 specs
MSRP
$1,149
$1,100
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