Side by side
Borealis Watch Co. Caloura 300mvsGrand 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
Caloura 300m42mm
SBGE25340.5mm
Power Reserve
Caloura 300m40h
SBGE25372h
Water Resistance
Caloura 300m300m
SBGE253200m
MSRP
Caloura 300m$275
SBGE253$6,900
Full specifications
Case
6 specsCategory
Diver
GMT
Diameter
42mm
40.5mm
Thickness
13.9mm
14.7mm
Lug-to-Lug
44.20mm
48.7mm
Lug Width
22mm
20mm
Water Resistance
300m
200m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Lume
BGW9
None
Movement
3 specsCaliber
NH35
9R66
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Pricing
1 specsMSRP
$275
$6,900
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