Side by side

Sangin Instruments NeptunevsSeiko Prospex Sea

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Neptune
Sangin InstrumentsNeptune
MSRP $1,599
See the full Neptune
Prospex Sea
SeikoProspex Sea
MSRP $595
See the full Prospex Sea
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At a glance

14 of 29 specs differ
Diameter
Neptune40mm
Prospex Sea41.7mm
Power Reserve
Neptune—
Prospex Sea41h
Water Resistance
Neptune300m
Prospex Sea200m
MSRP
Neptune$1,599
Prospex Sea$595

Full specifications

Case

7 specs
Category
—
Diver
Diameter
40mm
41.7mm
Thickness
0mm
12.3mm
Lug-to-Lug
0mm
49.5mm
Lug Width
0mm
20mm
Material
—
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal
—
Hardlex
Dial Color
Black
—
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW300-1
Seiko 4R35
Power Reserve
0h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$1,599
$595
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