Side by side
Riley Watch Co Heritage AutomaticvsGruppo Gamma Field III GMT Date
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Heritage Automatic40mm
Field III GMT Date40mm
Power Reserve
Heritage Automatic40h
Field III GMT Date41h
Water Resistance
Heritage Automatic50m
Field III GMT Date200m
MSRP
Heritage Automatic$401
Field III GMT Date$459
Full specifications
Case
5 specsCategory
—
GMT
Thickness
11mm
14mm
Lug-to-Lug
46mm
48.5mm
Lug Width
20mm
22mm
Water Resistance
50m
200m
Crystal & Dial
3 specsAR Coating
Inner
Yes
Dial Color
—
Black
Lume
None
Super-LumiNova
Movement
3 specsCaliber
Miyota 8N24
Seiko Instruments NH38A
Power Reserve
40h
41h
Complications
None
GMT, Date
Pricing
1 specsMSRP
—
$459
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