Side by side
Borealis Watch Co. JamantavsYema Navygraf Chrono
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Jamanta42.50mm
Navygraf Chrono40mm
Power Reserve
Jamanta40h
Navygraf Chrono40h
Water Resistance
Jamanta300m
Navygraf Chrono100m
MSRP
Jamanta$415
Navygraf Chrono$1,999
Full specifications
Case
7 specsCategory
Diver
Chronograph
Diameter
42.50mm
40mm
Thickness
13.30mm
13.9mm
Lug-to-Lug
50.40mm
—
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
3 specsCrystal
Sapphire
Domed Sapphire
Dial Color
Black
Navy
Lume
BGW9
None
Movement
1 specsCaliber
Miyota 9015
—
Pricing
1 specsMSRP
$415
$1,999
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