Side by side

Northern Star Watch SentinelvsSpinnaker Dumas GMT

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

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Sentinel
Northern Star WatchSentinel
MSRP $649
Dumas GMT
SpinnakerDumas GMT
MSRP $399
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Buy from Spinnaker ↗
Buy used on eBay ↗

At a glance

11 of 29 specs differ
Diameter
Sentinel40.5mm
Dumas GMT44mm
Power Reserve
Sentinel42h
Dumas GMT40h
Water Resistance
Sentinel50m
Dumas GMT300m
MSRP
Sentinel$649
Dumas GMT$399

Full specifications

Case

7 specs
Category
—
GMT
Diameter
40.5mm
44mm
Thickness
10.1mm
15mm
Lug-to-Lug
43.72mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

1 specs
Dial Color
White
Blue

Movement

2 specs
Caliber
Miyota 90S5
Seiko NH34A
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$649
$399
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