Side by side
Jorg Gray Watches JG7100vsSpinnaker Dumas GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
JG710041mm
Dumas GMT44mm
Power Reserve
JG7100—
Dumas GMT40h
Water Resistance
JG710050m
Dumas GMT300m
MSRP
JG7100—
Dumas GMT$399
Full specifications
Case
7 specsCategory
—
GMT
Diameter
41mm
44mm
Thickness
13mm
15mm
Lug-to-Lug
—
48mm
Lug Width
—
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
300m
Crystal & Dial
2 specsCrystal
Mineral
Sapphire
Dial Color
Black
Blue
Movement
3 specsCaliber
RONDA
Seiko NH34A
Type
Quartz
Automatic
Power Reserve
—
40h
Pricing
1 specsMSRP
—
$399
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