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 praised for its modern, angular case design and intricate Asanoha dial patterns, with reviewers highlighting its refined finishing and strong cultural significance. Owners and reviewers consistently note the 70-hour power reserve from the 6R35 movement (or 6R38/6R5J in some variants), anti-reflective sapphire crystals, and 10 bar water resistance. The collection is considered competitively priced, offering significant value for its design and build quality. Some models feature a super-hard coating on the case and bracelet. One owner notes the black dial of the SARX083 offers a subtle pop in the light, and another reviewer points out that a 24-hour indicator on certain models is a niche feature. Case sizes vary, with some models at 39.3mm and others at 40.2mm, and thickness ranges from 11.1mm to 11.8mm. Power reserves differ, with some models featuring 45 hours from the 6R21 movement.

At a glance

14 of 29 specs differ
Diameter
Strat-o-timer GMT42mm
Presage Sharp Edged Series42.2mm
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$1,400

Full specifications

Case

7 specs
Category
GMT
Diameter
42mm
42.2mm
Thickness
13.2mm
13.7mm
Lug-to-Lug
49mm
49.2mm
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 6R64
Power Reserve
42h
45h
Jewels
0
29

Pricing

1 specs
MSRP
$1,149
$1,400
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