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

At MSRP the Hemel HFC Mechanical Chronograph is the cheaper of the two at $550, against $2,700 for the Seiko Astron — a $2,150 gap before any retailer discounting.

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

The Seiko Astron wears larger at 43.3mm versus 40mm for the Hemel HFC Mechanical Chronograph — a 3.3mm difference across the dial.

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

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

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

The Hemel HFC Mechanical Chronograph runs a manual caliber (Seagull ST19), while the Seiko Astron runs a quartz (5X83).

Side by side

Hemel HFC Mechanical ChronographvsSeiko Astron

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 Astron

ssh151j1

MSRP $2,700

At a glance

13 of 29 specs differ

Diameter

HFC Mechanical Chronograph40mm

Astron43.3mm

Power Reserve

HFC Mechanical Chronograph40h

Astron40h

Water Resistance

HFC Mechanical Chronograph100m

Astron100m

MSRP

HFC Mechanical Chronograph$550

Astron$2,700

Full specifications

Case

4 specs

Diameter

40mm

43.3mm

Lug-to-Lug

47mm

49.5mm

Lug Width

20mm

14mm

Material

316L Stainless Steel

Titanium

Crystal & Dial

5 specs

Crystal

Domed Sapphire

Sapphire

Crystal Shape

Flat

Curved

AR Coating

Inner

Super-clear coating

Dial Color

Airfoil (1970s British Pilot)

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Seagull ST19

5X83

Type

Manual

Quartz

Jewels

Pricing

1 specs

MSRP

$550

$2,700

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Hemel HFC Mechanical ChronographvsSeiko Astron

At a glance

Full specifications

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