Glycine Airman SST GMTvsJack 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.

Glycine Airman SST GMT at true scale

Airman SST GMT

Jack Mason Strat-o-timer GMT at true scale

Strat-o-timer GMT

Diameter

43mm

42mm

Lug-to-Lug

n/a

49mm

Thickness

11.6mm

lowest

13.2mm

Water Resistance

200m

200m

Power Reserve

48h

highest

42h

MSRP

$905

lowest

$1,149

Movement

Sellita SW330-2

Miyota 9075

Case

6 specs
Diameter
43mm
42mm
Thickness
11.6mm
13.2mm
Lug-to-Lug
n/a
49mm
Material
Stainless Steel
316L Stainless Steel
Finish
n/a
n/a
Caseback
n/a
n/a

Crystal & Dial

5 specs
Crystal Shape
n/a
n/a
AR Coating
n/a
n/a
Dial Color
Grey
n/a
Indices
n/a
n/a
Lume
Luminous
None

Movement

5 specs
Caliber
Sellita SW330-2
Miyota 9075
Beat Rate
28,800 vph
0 vph
Power Reserve
48h
42h
Jewels
25
0
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$905
$1,149
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Glycine Airman SST GMT

Owners widely praise the Glycine Airman SST GMT for its comfortable wear, good build quality, accuracy, lume, historical significance, and ingenious GMT movement. The 24-hour dial and compressor-style GMT ring are highlighted as great features, and the watch is noted for keeping good time. Some owners expect Glycine branding on the Sellita SW330-2 movement rotor, and one owner experienced the watch stopping after a day on a winder with a rattling rotor, suggesting a service. The dial is considered busy by some, and it is harder to purchase than some alternatives. Overall, owners rate the Glycine Airman SST GMT highly for its comfortable wear and historical significance as a descendant of the original Airman.

Jack Mason Strat-o-timer GMT

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.

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.