Side by side
Borealis Watch Co. Caloura 300mvsSeestern S456 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Caloura 300m42mm
S456 GMT41mm
Power Reserve
Caloura 300m40h
S456 GMT41hh
Water Resistance
Caloura 300m300m
S456 GMT200m
MSRP
Caloura 300m$275
S456 GMT$299
Full specifications
Case
8 specsCategory
Diver
GMT
Diameter
42mm
41mm
Thickness
13.9mm
13mm
Lug-to-Lug
44.20mm
49mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Water Resistance
300m
200m
Crystal & Dial
2 specsDial Color
Black
Sunray style, applied and Diamond cut Indices, C1 lume
Lume
BGW9
C1
Movement
5 specsCaliber
NH35
Seiko NH34
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
41hh
Jewels
25
24
Complications
None
GMT
Pricing
1 specsMSRP
$275
$299
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