Side by side
Borealis Watch Co. JamantavsTudor Monarch
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
19 of 29 specs differDiameter
Jamanta42.50mm
Monarch39mm
Power Reserve
Jamanta40h
Monarch65h
Water Resistance
Jamanta300m
Monarch100m
MSRP
Jamanta$415
Monarch$5,875
Full specifications
Case
8 specsCategory
Diver
—
Diameter
42.50mm
39mm
Thickness
13.30mm
11.9mm
Lug-to-Lug
50.40mm
46mm
Lug Width
22mm
20mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
100m
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Black
Champagne
Lume
BGW9
None
Movement
6 specsCaliber
Miyota 9015
MT5662-2U
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
65h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Pricing
1 specsMSRP
$415
$5,875
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