Side by side
Borealis Watch Co. NeptunovsSeestern S456 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Neptuno40.00mm
S456 GMT41mm
Power Reserve
Neptuno40h
S456 GMT41hh
Water Resistance
Neptuno300m
S456 GMT200m
MSRP
Neptuno$390
S456 GMT$299
Full specifications
Case
8 specsCategory
Diver
GMT
Diameter
40.00mm
41mm
Thickness
14.10mm
13mm
Lug-to-Lug
47.20mm
49mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Water Resistance
300m
200m
Crystal & Dial
2 specsDial Color
Black
Sunray style, applied and Diamond cut Indices, C1 lume
Lume
BGW9
C1
Movement
5 specsCaliber
NH38
Seiko NH34
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
41hh
Jewels
25
24
Complications
None
GMT
Pricing
1 specsMSRP
$390
$299
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