Side by side
Borealis Watch Co. JamantavsGrand Seiko SBGE253
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
SBGE25340.5mm
Power Reserve
Jamanta40h
SBGE25372h
Water Resistance
Jamanta300m
SBGE253200m
MSRP
Jamanta$415
SBGE253$6,900
Full specifications
Case
6 specsCategory
Diver
GMT
Diameter
42.50mm
40.5mm
Thickness
13.30mm
14.7mm
Lug-to-Lug
50.40mm
48.7mm
Lug Width
22mm
20mm
Water Resistance
300m
200m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Lume
BGW9
None
Movement
3 specsCaliber
Miyota 9015
9R66
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Pricing
1 specsMSRP
$415
$6,900
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