Which is cheaper, the Hemel HD24 Automatic or the Timefactors Speedbird GMT?

At MSRP the Hemel HD24 Automatic is the cheaper of the two at $300, against $315 for the Timefactors Speedbird GMT — a $15 gap before any retailer discounting.

Which is bigger, the Hemel HD24 Automatic or the Timefactors Speedbird GMT?

The Hemel HD24 Automatic wears larger at 40mm versus 36mm for the Timefactors Speedbird GMT — a 4mm difference across the dial.

Which has better water resistance, the Hemel HD24 Automatic or the Timefactors Speedbird GMT?

The Hemel HD24 Automatic is rated to 200m versus 100m for the Timefactors Speedbird GMT.

What movement does the Hemel HD24 Automatic run compared to the Timefactors Speedbird GMT?

The Hemel HD24 Automatic runs a automatic caliber (Seiko NH38), while the Timefactors Speedbird GMT runs a quartz (Ronda 515).

Side by side

Hemel HD24 AutomaticvsTimefactors Speedbird GMT

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

Add a watch

Hemel HD24 Automatic

MSRP $300

See the full HD24 Automatic

Timefactors Speedbird GMT

MSRP $315

See the full Speedbird GMT

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Buy used on eBay ↗

Buy from Timefactors ↗

Buy used on eBay ↗

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At a glance

14 of 29 specs differ

Diameter

HD24 Automatic40mm

Speedbird GMT36mm

Power Reserve

HD24 Automatic—

Speedbird GMT—

Water Resistance

HD24 Automatic200m

Speedbird GMT100m

MSRP

HD24 Automatic$300

Speedbird GMT$315

Full specifications

Case

7 specs

Crystal & Dial

3 specs

Crystal

Domed Sapphire

Sapphire

Dial Color

Gallant USAF Edition

Black

Lume

None

Super Luminova X1 C3

Movement

3 specs

Caliber

Seiko NH38

Ronda 515

Type

Automatic

Quartz

Power Reserve

—

Pricing

1 specs

MSRP

$300

$315

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