Side by side
Borealis Watch Co. JamantavsNOMOS Glashütte Tetra 27
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
Tetra 2727.5mm
Power Reserve
Jamanta40h
Tetra 2743 hoursh
Water Resistance
Jamanta300m
Tetra 2750m
MSRP
Jamanta$415
Tetra 27$2,400
Full specifications
Case
8 specsCategory
Diver
Dress
Diameter
42.50mm
27.5mm
Thickness
13.30mm
6.1mm
Lug-to-Lug
50.40mm
38.5mm
Lug Width
22mm
18mm
Finish
Brushed and polished
—
Water Resistance
300m
50m
Caseback
Solid
—
Crystal & Dial
5 specsCrystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Black
Silver
Indices
Applied
—
Lume
BGW9
None
Movement
5 specsCaliber
Miyota 9015
Alpha | manual
Type
Automatic
Manual
Beat Rate
28,800 vph
21,600 vph
Power Reserve
40h
43 hoursh
Jewels
25
17
Pricing
1 specsMSRP
$415
$2,400
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