Side by side
Borealis Watch Co. Caloura 300mvsGrand 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
Caloura 300m42mm
SBGJ25940mm
Power Reserve
Caloura 300m40h
SBGJ25955h
Water Resistance
Caloura 300m300m
SBGJ259100m
MSRP
Caloura 300m$275
SBGJ259$7,700
Full specifications
Case
6 specsCategory
Diver
GMT
Diameter
42mm
40mm
Thickness
13.9mm
14mm
Lug-to-Lug
44.20mm
46.2mm
Lug Width
22mm
19mm
Water Resistance
300m
100m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Lume
BGW9
None
Movement
2 specsCaliber
NH35
9S86
Power Reserve
40h
55h
Pricing
1 specsMSRP
$275
$7,700
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