Side by side

Jack Mason Strat-o-timer GMTvsZelos Helmsman 3

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Strat-o-timer GMT
Jack MasonStrat-o-timer GMT
MSRP $1,099
Helmsman 3
ZelosHelmsman 3
MSRP $529
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Buy used on eBay ↗
Buy from Zelos ↗
Buy used on eBay ↗

At a glance

9 of 29 specs differ
Diameter
Strat-o-timer GMT40mm
Helmsman 340mm
Power Reserve
Strat-o-timer GMT42h
Helmsman 340h
Water Resistance
Strat-o-timer GMT200m
Helmsman 3200m
MSRP
Strat-o-timer GMT$1,099
Helmsman 3$529

Full specifications

Case

4 specs
Category
—
Diver
Thickness
13.2mm
11.5mm
Lug-to-Lug
47mm
40mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
—
SS - Frost

Movement

2 specs
Caliber
Miyota 9075
Miyota 9015
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$1,099
$529
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