Side by side

Oris Big Crown ProPilot Big DatevsBorealis Watch Co. Sea Storm MK2

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Big Crown ProPilot Big Date
OrisBig Crown ProPilot Big Date
MSRP $2,600
Sea Storm MK2
Borealis Watch Co.Sea Storm MK2
MSRP $475

At a glance

19 of 29 specs differ
Diameter
Big Crown ProPilot Big Date41mm
Sea Storm MK241.50mm
Power Reserve
Big Crown ProPilot Big Date38 hoursh
Sea Storm MK240h
Water Resistance
Big Crown ProPilot Big Date100m
Sea Storm MK2300m
MSRP
Big Crown ProPilot Big Date$2,600
Sea Storm MK2$475

Full specifications

Case

8 specs
Category
Pilot
Diver
Diameter
41mm
41.50mm
Thickness
14.15mm
Lug-to-Lug
48.50mm
Lug Width
20mm
20mm
Finish
Brushed and polished
Water Resistance
100m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Blue
Black
Indices
Applied
Lume
None
BGW9

Movement

5 specs
Caliber
751
NH38
Beat Rate
4 vph
28,800 vph
Power Reserve
38 hoursh
40h
Jewels
26
25
Complications
Date
None

Pricing

1 specs
MSRP
$2,600
$475

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