Side by side
Oblvlo JM RotorvsGruppo Gamma Field III GMT Date
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
JM Rotor42mm
Field III GMT Date40mm
Power Reserve
JM Rotor42h
Field III GMT Date41h
Water Resistance
JM Rotor50m
Field III GMT Date200m
MSRP
JM Rotor$299
Field III GMT Date$459
Full specifications
Case
6 specsCategory
Sport
GMT
Diameter
42mm
40mm
Thickness
13mm
14mm
Lug-to-Lug
46mm
48.5mm
Lug Width
20mm
22mm
Water Resistance
50m
200m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Lume
None
Super-LumiNova
Movement
4 specsCaliber
Miyota 8215
Seiko Instruments NH38A
Power Reserve
42h
41h
Jewels
21
25
Complications
None
GMT, Date
Pricing
1 specsMSRP
$299
$459
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