Side by side
Borealis Watch Co. NeptunovsTudor Black Bay 54
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
18 of 29 specs differDiameter
Neptuno40.00mm
Black Bay 5437mm
Power Reserve
Neptuno40h
Black Bay 5470h
Water Resistance
Neptuno300m
Black Bay 54200m
MSRP
Neptuno$390
Black Bay 54$4,725
Full specifications
Case
7 specsDiameter
40.00mm
37mm
Thickness
14.10mm
11.2mm
Lug-to-Lug
47.20mm
46mm
Lug Width
20mm
20mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Black
Blue
Lume
BGW9
Super-LumiNova
Movement
6 specsCaliber
NH38
MT5400
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Pricing
1 specsMSRP
$390
$4,725
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