Which is cheaper, the Hemel Sky Racer Mechanical or the Seiko Prospex Land Mechanical GMT?

At MSRP the Hemel Sky Racer Mechanical is the cheaper of the two at $550, against $1,150 for the Seiko Prospex Land Mechanical GMT — a $600 gap before any retailer discounting.

Which is bigger, the Hemel Sky Racer Mechanical or the Seiko Prospex Land Mechanical GMT?

The Hemel Sky Racer Mechanical wears larger at 43mm versus 39.5mm for the Seiko Prospex Land Mechanical GMT — a 3.5mm difference across the dial.

Which has better water resistance, the Hemel Sky Racer Mechanical or the Seiko Prospex Land Mechanical GMT?

The Hemel Sky Racer Mechanical is rated to 50m versus 20m for the Seiko Prospex Land Mechanical GMT.

Which has a longer power reserve, the Hemel Sky Racer Mechanical or the Seiko Prospex Land Mechanical GMT?

The Seiko Prospex Land Mechanical GMT carries a 72-hour power reserve against 40 hours on the Hemel Sky Racer Mechanical.

What movement does the Hemel Sky Racer Mechanical run compared to the Seiko Prospex Land Mechanical GMT?

The Hemel Sky Racer Mechanical runs a manual caliber (Seagull ST19), while the Seiko Prospex Land Mechanical GMT runs a automatic (6R54).

Side by side

Hemel Sky Racer MechanicalvsSeiko Prospex Land Mechanical GMT

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

Hemel Sky Racer Mechanical

HF37MNB

MSRP $550

Seiko Prospex Land Mechanical GMT

spb377j1

MSRP $1,150

At a glance

15 of 29 specs differ

Diameter

Sky Racer Mechanical43mm

Prospex Land Mechanical GMT39.5mm

Power Reserve

Sky Racer Mechanical40h

Prospex Land Mechanical GMT72h

Water Resistance

Sky Racer Mechanical50m

Prospex Land Mechanical GMT200m

MSRP

Sky Racer Mechanical$550

Prospex Land Mechanical GMT$1,150

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal

Domed Sapphire

Sapphire

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

None

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

Seagull ST19

6R54

Type

Manual

Automatic

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$550

$1,150

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