Which is cheaper, the Hemel HD24 Automatic or the Seiko Astron?

At MSRP the Hemel HD24 Automatic is the cheaper of the two at $300, against $3,100 for the Seiko Astron — a $2,800 gap before any retailer discounting.

Which is bigger, the Hemel HD24 Automatic or the Seiko Astron?

The Seiko Astron wears larger at 44.1mm versus 40mm for the Hemel HD24 Automatic — a 4.1mm difference across the dial.

Which has better water resistance, the Hemel HD24 Automatic or the Seiko Astron?

The Hemel HD24 Automatic is rated to 200m versus 10m for the Seiko Astron.

What movement does the Hemel HD24 Automatic run compared to the Seiko Astron?

The Hemel HD24 Automatic runs a automatic caliber (Seiko NH38A), while the Seiko Astron runs a quartz (5X83).

Side by side

Hemel HD24 AutomaticvsSeiko Astron

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

Hemel HD24 Automatic

the-gallant

MSRP $300

Seiko Astron

ssh175j1

MSRP $3,100

At a glance

16 of 29 specs differ

Diameter

HD24 Automatic40mm

Astron44.1mm

Power Reserve

HD24 Automatic40h

Astron40h

Water Resistance

HD24 Automatic200m

Astron100m

MSRP

HD24 Automatic$300

Astron$3,100

Full specifications

Case

7 specs

Crystal & Dial

5 specs

Crystal

Domed Sapphire

Sapphire

Crystal Shape

Flat

Curved

AR Coating

Inner

Super-clear coating

Dial Color

Gallant USAF Edition

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Seiko NH38A

5X83

Type

Automatic

Quartz

Jewels

Pricing

1 specs

MSRP

$300

$3,100

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Hemel HD24 AutomaticvsSeiko Astron

At a glance

Full specifications

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