Side by side
Northern Star Watch Icy SentinelvsGruppo Gamma Field III 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
Icy Sentinel40.5mm
Field III GMT40mm
Power Reserve
Icy Sentinel42h
Field III GMT41h
Water Resistance
Icy Sentinel50m
Field III GMT200m
MSRP
Icy Sentinel$849
Field III GMT$459
Full specifications
Case
6 specsCategory
—
GMT
Diameter
40.5mm
40mm
Thickness
10.1mm
14mm
Lug-to-Lug
43.72mm
48.5mm
Lug Width
20mm
22mm
Water Resistance
50m
200m
Crystal & Dial
3 specsAR Coating
Inner
Yes
Dial Color
Ice blue
Black
Lume
None
Super-LumiNova
Movement
3 specsCaliber
Miyota 90S5
Seiko Instruments NH38A
Power Reserve
42h
41h
Complications
None
GMT
Pricing
1 specsMSRP
$849
$459
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