Which is cheaper, the Seestern Sub 300 V4 or the Hemel Sky Racer Mechanical?

At MSRP the Seestern Sub 300 V4 is the cheaper of the two at $10, against $550 for the Hemel Sky Racer Mechanical — a $540 gap before any retailer discounting.

Which is bigger, the Seestern Sub 300 V4 or the Hemel Sky Racer Mechanical?

The Hemel Sky Racer Mechanical wears larger at 43mm versus 42mm for the Seestern Sub 300 V4 — a 1mm difference across the dial.

Which has better water resistance, the Seestern Sub 300 V4 or the Hemel Sky Racer Mechanical?

The Seestern Sub 300 V4 is rated to 200m versus 50m for the Hemel Sky Racer Mechanical.

Which has a longer power reserve, the Seestern Sub 300 V4 or the Hemel Sky Racer Mechanical?

The Seestern Sub 300 V4 carries a 41-hour power reserve against 40 hours on the Hemel Sky Racer Mechanical.

What movement does the Seestern Sub 300 V4 run compared to the Hemel Sky Racer Mechanical?

The Seestern Sub 300 V4 runs a automatic caliber (Seiko NH35A), while the Hemel Sky Racer Mechanical runs a manual (Seagull ST19).

Side by side

Seestern Sub 300 V4vsHemel Sky Racer Mechanical

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

Seestern Sub 300 V4

Sub 300 V4

MSRP $10

Hemel Sky Racer Mechanical

HF37MNB

MSRP $550

At a glance

18 of 29 specs differ

Diameter

Sub 300 V442mm

Sky Racer Mechanical43mm

Power Reserve

Sub 300 V441h

Sky Racer Mechanical40h

Water Resistance

Sub 300 V4200m

Sky Racer Mechanical50m

MSRP

Sub 300 V4$10

Sky Racer Mechanical$550

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal

Sapphire

Domed Sapphire

AR Coating

Underside

Inner

Dial Color

Orange

Black

Lume

Japan Lume (blue glow)

None

Movement

6 specs

Caliber

Seiko NH35A

Seagull ST19

Type

Automatic

Manual

Beat Rate

21,600 vph

28,800 vph

Power Reserve

41h

40h

Jewels

Complications

GMT, Date

None

Pricing

1 specs

MSRP

$10

$550

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Seestern Sub 300 V4vsHemel Sky Racer Mechanical

At a glance

Full specifications

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