Which is cheaper, the Hemel Sky Racer Mechanical or the Seiko Astron GPS Solar 2026 Limited Edition?

At MSRP the Hemel Sky Racer Mechanical is the cheaper of the two at $550, against $2,400 for the Seiko Astron GPS Solar 2026 Limited Edition — a $1,850 gap before any retailer discounting.

Which is bigger, the Hemel Sky Racer Mechanical or the Seiko Astron GPS Solar 2026 Limited Edition?

The Hemel Sky Racer Mechanical wears larger at 43mm versus 41.2mm for the Seiko Astron GPS Solar 2026 Limited Edition — a 1.8mm difference across the dial.

Which has better water resistance, the Hemel Sky Racer Mechanical or the Seiko Astron GPS Solar 2026 Limited Edition?

The Hemel Sky Racer Mechanical is rated to 50m versus 10m for the Seiko Astron GPS Solar 2026 Limited Edition.

What movement does the Hemel Sky Racer Mechanical run compared to the Seiko Astron GPS Solar 2026 Limited Edition?

The Hemel Sky Racer Mechanical runs a manual caliber (Seagull ST19), while the Seiko Astron GPS Solar 2026 Limited Edition runs a quartz (3X62).

Side by side

Hemel Sky Racer MechanicalvsSeiko Astron GPS Solar 2026 Limited Edition

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

Hemel Sky Racer Mechanical

HF37MNB

MSRP $550

Seiko Astron GPS Solar 2026 Limited Edition

ssj039j1

MSRP $2,400

At a glance

14 of 29 specs differ

Diameter

Sky Racer Mechanical43mm

Astron GPS Solar 2026 Limited Edition41.2mm

Power Reserve

Sky Racer Mechanical40h

Astron GPS Solar 2026 Limited Edition40h

Water Resistance

Sky Racer Mechanical50m

Astron GPS Solar 2026 Limited Edition100m

MSRP

Sky Racer Mechanical$550

Astron GPS Solar 2026 Limited Edition$2,400

Full specifications

Case

7 specs

Crystal & Dial

3 specs

Crystal

Domed Sapphire

Sapphire

AR Coating

Inner

Super-clear coating

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Seagull ST19

3X62

Type

Manual

Quartz

Jewels

Pricing

1 specs

MSRP

$550

$2,400

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