Side by side

Slow Watches Slow Automatic GMTvsSpinnaker Dumas GMT

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

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Slow Automatic GMT
Slow WatchesSlow Automatic GMT
Dumas GMT
SpinnakerDumas GMT
MSRP $399
Buy from Slow Watches ↗
Buy used on eBay ↗
Buy from Spinnaker ↗
Buy used on eBay ↗

At a glance

11 of 29 specs differ
Diameter
Slow Automatic GMT41mm
Dumas GMT44mm
Power Reserve
Slow Automatic GMT—
Dumas GMT40h
Water Resistance
Slow Automatic GMT100m
Dumas GMT300m
MSRP
Slow Automatic GMT—
Dumas GMT$399

Full specifications

Case

7 specs
Category
—
GMT
Diameter
41mm
44mm
Thickness
7.6mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
—
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
Silver
Blue

Movement

2 specs
Caliber
ETA 2893-2
Seiko NH34A
Power Reserve
—
40h

Pricing

1 specs
MSRP
—
$399
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All alternatives to the Slow Automatic GMT →All alternatives to the Dumas GMT →
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