Side by side
Borealis Watch Co. JamantavsGrand Seiko SBGJ259
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
SBGJ25940mm
Power Reserve
Jamanta40h
SBGJ25955h
Water Resistance
Jamanta300m
SBGJ259100m
MSRP
Jamanta$415
SBGJ259$7,700
Full specifications
Case
6 specsCategory
Diver
GMT
Diameter
42.50mm
40mm
Thickness
13.30mm
14mm
Lug-to-Lug
50.40mm
46.2mm
Lug Width
22mm
19mm
Water Resistance
300m
100m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Lume
BGW9
None
Movement
2 specsCaliber
Miyota 9015
9S86
Power Reserve
40h
55h
Pricing
1 specsMSRP
$415
$7,700
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