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

At MSRP the Hemel HFC Mechanical Chronograph is the cheaper of the two at $550, against $5,500 for the Seiko Prospex LX line — a $4,950 gap before any retailer discounting.

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

The Seiko Prospex LX line wears larger at 44.8mm versus 40mm for the Hemel HFC Mechanical Chronograph — a 4.8mm difference across the dial.

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

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

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

The Seiko Prospex LX line 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 LX line?

The Hemel HFC Mechanical Chronograph runs a manual caliber (Seagull ST19), while the Seiko Prospex LX line runs a spring drive (5R66).

Side by side

Hemel HFC Mechanical ChronographvsSeiko Prospex LX line

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 LX line

snr025j1

MSRP $5,500

At a glance

16 of 29 specs differ

Diameter

HFC Mechanical Chronograph40mm

Prospex LX line44.8mm

Power Reserve

HFC Mechanical Chronograph40h

Prospex LX line72h

Water Resistance

HFC Mechanical Chronograph100m

Prospex LX line200m

MSRP

HFC Mechanical Chronograph$550

Prospex LX line$5,500

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal

Domed Sapphire

Sapphire

AR Coating

Inner

Super-clear coating

Dial Color

Airfoil (1970s British Pilot)

Black

Lume

None

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

Seagull ST19

5R66

Type

Manual

Spring Drive

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$550

$5,500

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