Which is cheaper, the Hemel Sky Racer Automatic or the Seiko Astron?

At MSRP the Hemel Sky Racer Automatic is the cheaper of the two at $700, against $2,500 for the Seiko Astron — a $1,800 gap before any retailer discounting.

Which is bigger, the Hemel Sky Racer Automatic or the Seiko Astron?

The Hemel Sky Racer Automatic wears larger at 43mm versus 42mm for the Seiko Astron — a 1mm difference across the dial.

Which has better water resistance, the Hemel Sky Racer Automatic or the Seiko Astron?

The Hemel Sky Racer Automatic is rated to 50m versus 10m for the Seiko Astron.

What movement does the Hemel Sky Racer Automatic run compared to the Seiko Astron?

The Hemel Sky Racer Automatic runs a automatic caliber (SL4617), while the Seiko Astron runs a quartz (5X83).

Side by side

Hemel Sky Racer AutomaticvsSeiko Astron

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

Hemel Sky Racer Automatic

sky-racer

MSRP $700

Seiko Astron

ssh159j1

MSRP $2,500

At a glance

15 of 29 specs differ

Diameter

Sky Racer Automatic43mm

Astron42mm

Power Reserve

Sky Racer Automatic40h

Astron40h

Water Resistance

Sky Racer Automatic50m

Astron100m

MSRP

Sky Racer Automatic$700

Astron$2,500

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal

Domed Sapphire

Sapphire

AR Coating

Inner

Super-clear coating

Dial Color

Panda

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

SL4617

5X83

Type

Automatic

Quartz

Jewels

Pricing

1 specs

MSRP

$700

$2,500

Follow this matchup

Get a note when Hemel Sky Racer Automatic vs Seiko Astron gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Geckotamicro

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Geckota Chronotimer Sports EditionvsSeiko Astron Seiko AstronvsHelgray Superfast Automatic - Silver Panda Lum-Tec EclipsevsSeiko Astron Spinnaker Hull RivieravsSeiko Astron Hemel Sky Racer AutomaticvsFarer Segrave III Hemel Sky Racer AutomaticvsHelgray Skyfighter (Refurbished)

Edit this comparison Add another watch Explore more 41–44mm watches

Hemel Sky Racer AutomaticvsSeiko Astron

At a glance

Full specifications

Follow this matchup

More watches worth a look

Chronotimer Sports Edition

Segrave III

Superfast Automatic - Silver Panda

Skyfighter (Refurbished)

Eclipse

Hawker Hurricane Carey Dual Time

Hull Riviera

Cabot Sea Falcon Watch

People also compared