Side by side
Lum-Tec RPMvsGruppo Gamma Field III GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
RPM43mm
Field III GMT40mm
Power Reserve
RPM40h
Field III GMT41h
Water Resistance
RPM50m
Field III GMT200m
MSRP
RPM$495
Field III GMT$459
Full specifications
Case
7 specsCategory
Chronograph
GMT
Diameter
43mm
40mm
Thickness
12.3mm
14mm
Lug-to-Lug
41mm
48.5mm
Lug Width
20mm
22mm
Material
Titanium
Stainless Steel
Water Resistance
50m
200m
Crystal & Dial
3 specsAR Coating
Inner
Yes
Dial Color
RPM 3
Black
Lume
None
Super-LumiNova
Movement
4 specsCaliber
—
Seiko Instruments NH38A
Type
Quartz
Automatic
Power Reserve
40h
41h
Complications
None
GMT
Pricing
1 specsMSRP
$495
$459
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