Which is cheaper, the Hemel HFC Mechanical Chronograph or the Seiko Prospex SPEEDTIMER Mechanical?

At MSRP the Hemel HFC Mechanical Chronograph is the cheaper of the two at $550, against $995 for the Seiko Prospex SPEEDTIMER Mechanical — a $445 gap before any retailer discounting.

Which is bigger, the Hemel HFC Mechanical Chronograph or the Seiko Prospex SPEEDTIMER Mechanical?

The Hemel HFC Mechanical Chronograph wears larger at 40mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical — a 0.5mm difference across the dial.

Which has better water resistance, the Hemel HFC Mechanical Chronograph or the Seiko Prospex SPEEDTIMER Mechanical?

The Hemel HFC Mechanical Chronograph is rated to 100m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical.

Which has a longer power reserve, the Hemel HFC Mechanical Chronograph or the Seiko Prospex SPEEDTIMER Mechanical?

The Seiko Prospex SPEEDTIMER Mechanical carries a 72-hour power reserve against 40 hours on the Hemel HFC Mechanical Chronograph.

What movement does the Hemel HFC Mechanical Chronograph run compared to the Seiko Prospex SPEEDTIMER Mechanical?

The Hemel HFC Mechanical Chronograph runs a manual caliber (Seagull ST19), while the Seiko Prospex SPEEDTIMER Mechanical runs a automatic (6R55).

Side by side

Hemel HFC Mechanical ChronographvsSeiko Prospex SPEEDTIMER Mechanical

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

Hemel HFC Mechanical Chronograph

the-airfoil

MSRP $550

Seiko Prospex SPEEDTIMER Mechanical

spb513j1

MSRP $995

At a glance

15 of 29 specs differ

Diameter

HFC Mechanical Chronograph40mm

Prospex SPEEDTIMER Mechanical39.5mm

Power Reserve

HFC Mechanical Chronograph40h

Prospex SPEEDTIMER Mechanical72h

Water Resistance

HFC Mechanical Chronograph100m

Prospex SPEEDTIMER Mechanical200m

MSRP

HFC Mechanical Chronograph$550

Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

5 specs

Diameter

40mm

39.5mm

Thickness

13.4mm

12mm

Lug-to-Lug

47mm

44.5mm

Material

316L Stainless Steel

Stainless Steel

Water Resistance

100m

200m

Crystal & Dial

5 specs

Crystal

Domed Sapphire

Sapphire

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Airfoil (1970s British Pilot)

Black

Lume

None

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

Seagull ST19

6R55

Type

Manual

Automatic

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$550

$995

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