Side by side
Feynman Timekeepers CoalescevsSpinnaker Dumas GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Coalesce39mm
Dumas GMT44mm
Power Reserve
Coalesce—
Dumas GMT40h
Water Resistance
Coalesce—
Dumas GMT300m
MSRP
Coalesce$5,448
Dumas GMT$399
Full specifications
Case
7 specsCategory
—
GMT
Diameter
39mm
44mm
Thickness
—
15mm
Lug-to-Lug
—
48mm
Lug Width
—
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
—
300m
Crystal & Dial
1 specsDial Color
Panda
Blue
Movement
2 specsCaliber
Sellita SW200-1
Seiko NH34A
Power Reserve
—
40h
Pricing
1 specsMSRP
$5,448
$399
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