Which is cheaper, the Hemel Sky Racer Mechanical or the Longines PrimaLuna Moonphase?

At MSRP the Hemel Sky Racer Mechanical is the cheaper of the two at $550, against $2,950 for the Longines PrimaLuna Moonphase — a $2,400 gap before any retailer discounting.

Which is bigger, the Hemel Sky Racer Mechanical or the Longines PrimaLuna Moonphase?

The Hemel Sky Racer Mechanical wears larger at 43mm versus 34mm for the Longines PrimaLuna Moonphase — a 9mm difference across the dial.

Which has better water resistance, the Hemel Sky Racer Mechanical or the Longines PrimaLuna Moonphase?

The Hemel Sky Racer Mechanical is rated to 50m versus 30m for the Longines PrimaLuna Moonphase.

Which has a longer power reserve, the Hemel Sky Racer Mechanical or the Longines PrimaLuna Moonphase?

The Longines PrimaLuna Moonphase carries a 72-hour power reserve against 40 hours on the Hemel Sky Racer Mechanical.

What movement does the Hemel Sky Racer Mechanical run compared to the Longines PrimaLuna Moonphase?

The Hemel Sky Racer Mechanical runs a manual caliber (Seagull ST19), while the Longines PrimaLuna Moonphase runs a automatic (L899.5).

Side by side

Hemel Sky Racer MechanicalvsLongines PrimaLuna Moonphase

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

Hemel Sky Racer Mechanical

HF37MNB

MSRP $550

Longines PrimaLuna Moonphase

L8.126.4.97.6

MSRP $2,950

At a glance

24 of 29 specs differ

Diameter

Sky Racer Mechanical43mm

PrimaLuna Moonphase34mm

Power Reserve

Sky Racer Mechanical40h

PrimaLuna Moonphase72h

Water Resistance

Sky Racer Mechanical50m

PrimaLuna Moonphase30m

MSRP

Sky Racer Mechanical$550

PrimaLuna Moonphase$2,950

Full specifications

Case

9 specs

Crystal & Dial

6 specs

Crystal

Domed Sapphire

Sapphire

Crystal Shape

Flat

—

AR Coating

Inner

Both sides

Dial Color

Black

Blue

Indices

Applied

Diamond indexes

Lume

None

Super-LumiNova

Movement

8 specs

Caliber

Seagull ST19

L899.5

Type

Manual

Automatic

Beat Rate

28,800 vph

25,200 vph

Power Reserve

40h

72h

Jewels

Hacking

Yes

Hand-winding

Yes

Complications

None

Hours, minutes, seconds and date, Moon phase display at 6 o'clock

Pricing

1 specs

MSRP

$550

$2,950

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