Side by side
Feynman Timekeepers Feynman OnevsGruppo 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
Feynman One39mm
Field III GMT40mm
Power Reserve
Feynman One—
Field III GMT41h
Water Resistance
Feynman One50m
Field III GMT200m
MSRP
Feynman One$1,045
Field III GMT$459
Full specifications
Case
6 specsCategory
—
GMT
Diameter
39mm
40mm
Thickness
11.5mm
14mm
Lug-to-Lug
—
48.5mm
Lug Width
20mm
22mm
Water Resistance
50m
200m
Crystal & Dial
4 specsCrystal
—
Sapphire
AR Coating
Inner
Yes
Dial Color
Sweet Orange
Black
Lume
None
Super-LumiNova
Movement
4 specsCaliber
ETA 7001
Seiko Instruments NH38A
Type
Manual
Automatic
Power Reserve
—
41h
Complications
None
GMT
Pricing
1 specsMSRP
$1,045
$459
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