Side by side
Borealis Watch Co. Caloura 300mvsGrand Seiko SBGJ237
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Caloura 300m42mm
SBGJ23744.2mm
Power Reserve
Caloura 300m40h
SBGJ23755h
Water Resistance
Caloura 300m300m
SBGJ237200m
MSRP
Caloura 300m$275
SBGJ237$7,600
Full specifications
Case
6 specsCategory
Diver
GMT
Diameter
42mm
44.2mm
Thickness
13.9mm
14.4mm
Lug-to-Lug
44.20mm
50.6mm
Lug Width
22mm
21mm
Water Resistance
300m
200m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Lume
BGW9
None
Movement
2 specsCaliber
NH35
9S86
Power Reserve
40h
55h
Pricing
1 specsMSRP
$275
$7,600
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