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

At MSRP the Hemel HFC Mechanical Chronograph is the cheaper of the two at $550, against $2,500 for the Seiko Prospex SPEEDTIMER Mechanical Chronograph — a $1,950 gap before any retailer discounting.

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

The Seiko Prospex SPEEDTIMER Mechanical Chronograph wears larger at 42mm versus 40mm for the Hemel HFC Mechanical Chronograph — a 2mm difference across the dial.

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

The Hemel HFC Mechanical Chronograph is rated to 100m versus 10m for the Seiko Prospex SPEEDTIMER Mechanical Chronograph.

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

The Seiko Prospex SPEEDTIMER Mechanical Chronograph carries a 45-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 Chronograph?

The Hemel HFC Mechanical Chronograph runs a manual caliber (Seagull ST19), while the Seiko Prospex SPEEDTIMER Mechanical Chronograph runs a automatic (8R48).

Side by side

Hemel HFC Mechanical ChronographvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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 Chronograph

srq047j1

MSRP $2,500

At a glance

14 of 29 specs differ

Diameter

HFC Mechanical Chronograph40mm

Prospex SPEEDTIMER Mechanical Chronograph42mm

Power Reserve

HFC Mechanical Chronograph40h

Prospex SPEEDTIMER Mechanical Chronograph45h

Water Resistance

HFC Mechanical Chronograph100m

Prospex SPEEDTIMER Mechanical Chronograph100m

MSRP

HFC Mechanical Chronograph$550

Prospex SPEEDTIMER Mechanical Chronograph$2,500

Full specifications

Case

4 specs

Diameter

40mm

42mm

Thickness

13.4mm

14.6mm

Lug-to-Lug

47mm

49.5mm

Material

316L Stainless Steel

Stainless Steel

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

8R48

Type

Manual

Automatic

Power Reserve

40h

45h

Jewels

Pricing

1 specs

MSRP

$550

$2,500

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