Side by side
Spinnaker Dumas GMTvsTornek-Rayville TR-660 Aluminum Date
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Dumas GMT44mm
TR-660 Aluminum Date40mm
Power Reserve
Dumas GMT40h
TR-660 Aluminum Date50h
Water Resistance
Dumas GMT300m
TR-660 Aluminum Date200m
MSRP
Dumas GMT$399
TR-660 Aluminum Date—
Full specifications
Case
7 specsCategory
GMT
Diver
Diameter
44mm
40mm
Thickness
15mm
14.7mm
Lug-to-Lug
48mm
48.5mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m
Crystal & Dial
3 specsAR Coating
Inner
Yes
Dial Color
Blue
Black
Lume
None
Superluminova
Movement
2 specsCaliber
Seiko NH34A
TMI NH38
Power Reserve
40h
50h
Pricing
1 specsMSRP
$399
—
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