Which is cheaper, the Oris Big Crown Diamonds or the Hemel HFC Mechanical Chronograph?

At MSRP the Hemel HFC Mechanical Chronograph is the cheaper of the two at $550, against $3,300 for the Oris Big Crown Diamonds — a $2,750 gap before any retailer discounting.

Which is bigger, the Oris Big Crown Diamonds or the Hemel HFC Mechanical Chronograph?

The Hemel HFC Mechanical Chronograph wears larger at 40mm versus 34mm for the Oris Big Crown Diamonds — a 6mm difference across the dial.

Which has better water resistance, the Oris Big Crown Diamonds or the Hemel HFC Mechanical Chronograph?

The Hemel HFC Mechanical Chronograph is rated to 100m versus 50m for the Oris Big Crown Diamonds.

Which has a longer power reserve, the Oris Big Crown Diamonds or the Hemel HFC Mechanical Chronograph?

The Hemel HFC Mechanical Chronograph carries a 40-hour power reserve against 42 hours hours on the Oris Big Crown Diamonds.

What movement does the Oris Big Crown Diamonds run compared to the Hemel HFC Mechanical Chronograph?

The Oris Big Crown Diamonds runs a automatic caliber (531), while the Hemel HFC Mechanical Chronograph runs a manual (Seagull ST19).

Side by side

Oris Big Crown DiamondsvsHemel HFC Mechanical Chronograph

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

Oris Big Crown Diamonds

01-531-7797-4094-07-8-17-06

MSRP $3,300

Hemel HFC Mechanical Chronograph

the-airfoil

MSRP $550

At a glance

20 of 29 specs differ

Diameter

Big Crown Diamonds34mm

HFC Mechanical Chronograph40mm

Power Reserve

Big Crown Diamonds42 hoursh

HFC Mechanical Chronograph40h

Water Resistance

Big Crown Diamonds50m

HFC Mechanical Chronograph100m

MSRP

Big Crown Diamonds$3,300

HFC Mechanical Chronograph$550

Full specifications

Case

9 specs

Crystal & Dial

5 specs

Crystal

Sapphire

Domed Sapphire

Crystal Shape

—

Flat

AR Coating

Underside

Inner

Dial Color

Black

Airfoil (1970s British Pilot)

Indices

—

Applied

Movement

5 specs

Caliber

531

Seagull ST19

Type

Automatic

Manual

Beat Rate

4 vph

28,800 vph

Power Reserve

42 hoursh

40h

Jewels

—

Pricing

1 specs

MSRP

$3,300

$550

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