Side by side
Borealis Watch Co. Caloura 300mvsRolex Rolex Deepsea
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
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At a glance
19 of 29 specs differDiameter
Caloura 300m42mm
Rolex Deepsea44mm
Power Reserve
Caloura 300m—
Rolex Deepsea70h
Water Resistance
Caloura 300m300m
Rolex Deepsea3,900m
MSRP
Caloura 300m$275
Rolex Deepsea$68,100
Full specifications
Case
7 specsDiameter
42mm
44mm
Thickness
13.9mm
5.5mm
Lug-to-Lug
44.2mm
—
Lug Width
22mm
—
Material
Stainless Steel
18 kt yellow gold
Water Resistance
300m
3900m
Caseback
—
Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock System case architecture with Helium escape valve
Crystal & Dial
4 specsCrystal Shape
—
Flat
Dial Color
—
Black
Indices
—
Index
Lume
BGW9
Chromalight
Movement
7 specsCaliber
Seiko NH35
3235
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
70h
Jewels
0
31
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Date
Pricing
1 specsMSRP
$275
$68,100
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