Side by side
Borealis Watch Co. JamantavsFormex Reef GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
Jamanta42.50mm
Reef GMT42mm
Power Reserve
Jamanta40h
Reef GMT56h
Water Resistance
Jamanta300m
Reef GMT300m
MSRP
Jamanta$415
Reef GMT$2,235
Full specifications
Case
5 specsCategory
Diver
GMT
Diameter
42.50mm
42mm
Thickness
13.30mm
11.4mm
Lug-to-Lug
50.40mm
47mm
Lug Width
22mm
22mm
Crystal & Dial
1 specsLume
BGW9
Super-LumiNova
Movement
2 specsCaliber
Miyota 9015
Sellita SW330-2
Power Reserve
40h
56h
Pricing
1 specsMSRP
$415
$2,235
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