Side by side
Seestern Sub 300 V4vsBorealis Watch Co. Jamanta
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
Sub 300 V442mm
Jamanta42.50mm
Power Reserve
Sub 300 V441h
Jamanta40h
Water Resistance
Sub 300 V4200m
Jamanta300m
MSRP
Sub 300 V4$10
Jamanta$415
Full specifications
Case
8 specsDiameter
42mm
42.50mm
Thickness
13mm
13.30mm
Lug-to-Lug
46mm
50.40mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Sandblasted
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid screw-down
Solid
Crystal & Dial
3 specsAR Coating
Underside
Inner
Dial Color
Orange
Black
Lume
Japan Lume (blue glow)
BGW9
Movement
5 specsCaliber
Seiko NH35A
Miyota 9015
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
40h
Jewels
24
25
Complications
GMT, Date
None
Pricing
1 specsMSRP
$10
$415
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