Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsBell & Ross BR-03 Chrono Blacktrack
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
19 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
BR-03 Chrono Blacktrack42mm
Power Reserve
Sea Storm MK2 GMT40h
BR-03 Chrono Blacktrack42 hoursh
Water Resistance
Sea Storm MK2 GMT300m
BR-03 Chrono Blacktrack100m
MSRP
Sea Storm MK2 GMT$415
BR-03 Chrono Blacktrack$7,776
Full specifications
Case
9 specsCategory
Diver
Chronograph
Diameter
41.50mm
42mm
Thickness
14.15mm
—
Lug-to-Lug
48.50mm
—
Lug Width
20mm
—
Material
Stainless Steel
Ceramic
Finish
Brushed and polished
—
Water Resistance
300m
100m
Caseback
Solid
—
Crystal & Dial
4 specsCrystal Shape
Flat
—
AR Coating
Inner
Underside
Indices
Applied
Applied indices
Lume
BGW9
Super-LumiNova
Movement
5 specsCaliber
NH34
BR-CAL.301
Beat Rate
28,800 vph
—
Power Reserve
40h
42 hoursh
Jewels
25
—
Complications
None
Hours/Minutes, Date, Chronograph
Pricing
1 specsMSRP
$415
$7,776
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