Side by side
Borealis Watch Co. JamantavsWolbrook Douglas Grand Prix Racing
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Jamanta42.50mm
Douglas Grand Prix Racing40mm
Power Reserve
Jamanta40h
Douglas Grand Prix Racing40h
Water Resistance
Jamanta300m
Douglas Grand Prix Racing100m
MSRP
Jamanta$415
Douglas Grand Prix Racing$442
Full specifications
Case
7 specsCategory
Diver
Racing
Diameter
42.50mm
40mm
Thickness
13.30mm
13mm
Lug-to-Lug
50.40mm
—
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
2 specsDial Color
Black
Steel
Lume
BGW9
None
Movement
1 specsCaliber
Miyota 9015
Miyota 8315
Pricing
1 specsMSRP
$415
$442
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