Side by side
Alexander James Watches A4 Prelude 37 GMT Light BluevsBorealis Watch Co. Jamanta
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
A4 Prelude 37 GMT Light Blue37.4mm
Jamanta42.50mm
Power Reserve
A4 Prelude 37 GMT Light Blue40h
Jamanta40h
Water Resistance
A4 Prelude 37 GMT Light Blue200m
Jamanta300m
MSRP
A4 Prelude 37 GMT Light Blue$325
Jamanta$415
Full specifications
Case
6 specsCategory
—
Diver
Diameter
37.4mm
42.50mm
Thickness
12.1mm
13.30mm
Lug-to-Lug
46mm
50.40mm
Lug Width
20mm
22mm
Water Resistance
200m
300m
Crystal & Dial
2 specsDial Color
—
Black
Lume
None
BGW9
Movement
1 specsCaliber
Seiko NH34
Miyota 9015
Pricing
1 specsMSRP
$325
$415
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