Which is cheaper, the Borealis Watch Co. Neptuno or the Seiko 5 Sports Field series?

At MSRP the Seiko 5 Sports Field series is the cheaper of the two at $315, against $390 for the Borealis Watch Co. Neptuno — a $75 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Neptuno or the Seiko 5 Sports Field series?

The Borealis Watch Co. Neptuno wears larger at 40.00mm versus 39.4mm for the Seiko 5 Sports Field series — a 0.6mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Neptuno or the Seiko 5 Sports Field series?

The Borealis Watch Co. Neptuno is rated to 300m versus 10m for the Seiko 5 Sports Field series.

Which has a longer power reserve, the Borealis Watch Co. Neptuno or the Seiko 5 Sports Field series?

The Seiko 5 Sports Field series carries a 41-hour power reserve against 40 hours on the Borealis Watch Co. Neptuno.

What movement does the Borealis Watch Co. Neptuno run compared to the Seiko 5 Sports Field series?

Both watches run automatic movements — the Borealis Watch Co. Neptuno uses the NH38 and the Seiko 5 Sports Field series uses the 4R36.

Side by side

Borealis Watch Co. NeptunovsSeiko 5 Sports Field series

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

Borealis Watch Co.Neptuno

borealis-neptuno-red-fade-to-black-dial-no-date-nh38-automatic-movement-300m-diver-watch

MSRP $390

Seiko 5 Sports Field series

srpg27

MSRP $315

At a glance

13 of 29 specs differ

Diameter

Neptuno40.00mm

5 Sports Field series39.4mm

Power Reserve

Neptuno40h

5 Sports Field series41h

Water Resistance

Neptuno300m

5 Sports Field series100m

MSRP

Neptuno$390

5 Sports Field series$315

Full specifications

Case

6 specs

Crystal & Dial

3 specs

Crystal

Sapphire

Hardlex

Crystal Shape

Flat

Curved

Lume

BGW9

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

NH38

4R36

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

$390

$315

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