Side by side
Impossible Watch Company IMP ChronographvsSpinnaker 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
IMP Chronograph38.5mm
Dumas GMT44mm
Power Reserve
IMP Chronograph42h
Dumas GMT40h
Water Resistance
IMP Chronograph30m
Dumas GMT300m
MSRP
IMP Chronograph$595
Dumas GMT$399
Full specifications
Case
7 specsCategory
—
GMT
Diameter
38.5mm
44mm
Thickness
13.5mm
15mm
Lug-to-Lug
—
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
30m
300m
Crystal & Dial
2 specsCrystal
K1
Sapphire
Dial Color
Silver Gilt
Blue
Movement
3 specsCaliber
Seagull ST1901
Seiko NH34A
Type
Manual
Automatic
Power Reserve
42h
40h
Pricing
1 specsMSRP
$595
$399
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