Side by side
Borealis Watch Co. JamantavsLongines MASTER COLLECTION
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
21 of 29 specs differDiameter
Jamanta42.50mm
MASTER COLLECTION29mm
Power Reserve
Jamanta40h
MASTER COLLECTION45h
Water Resistance
Jamanta300m
MASTER COLLECTION30m
MSRP
Jamanta$415
MASTER COLLECTION$3,950
Full specifications
Case
9 specsCategory
Diver
—
Diameter
42.50mm
29mm
Thickness
13.30mm
9mm
Lug-to-Lug
50.40mm
34.5mm
Lug Width
22mm
15mm
Material
Stainless Steel
18k Yellow Gold
Finish
Brushed and polished
—
Water Resistance
300m
30m
Caseback
Solid
—
Crystal & Dial
5 specsCrystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Black
Steel
Indices
Applied
—
Lume
BGW9
None
Movement
6 specsCaliber
Miyota 9015
L592.5
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
45h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Pricing
1 specsMSRP
$415
$3,950
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