Which is cheaper, the Hemel Sky Racer Mechanical or the Tissot PRX UFO Robot Grendizer 50th Anniversary?

At MSRP the Hemel Sky Racer Mechanical is the cheaper of the two at $550, against $1,100 for the Tissot PRX UFO Robot Grendizer 50th Anniversary — a $550 gap before any retailer discounting.

Which is bigger, the Hemel Sky Racer Mechanical or the Tissot PRX UFO Robot Grendizer 50th Anniversary?

The Hemel Sky Racer Mechanical wears larger at 43mm versus 40mm for the Tissot PRX UFO Robot Grendizer 50th Anniversary — a 3mm difference across the dial.

Which has better water resistance, the Hemel Sky Racer Mechanical or the Tissot PRX UFO Robot Grendizer 50th Anniversary?

The Tissot PRX UFO Robot Grendizer 50th Anniversary is rated to 100m versus 50m for the Hemel Sky Racer Mechanical.

Which has a longer power reserve, the Hemel Sky Racer Mechanical or the Tissot PRX UFO Robot Grendizer 50th Anniversary?

The Tissot PRX UFO Robot Grendizer 50th Anniversary carries a 80-hour power reserve against 40 hours on the Hemel Sky Racer Mechanical.

What movement does the Hemel Sky Racer Mechanical run compared to the Tissot PRX UFO Robot Grendizer 50th Anniversary?

The Hemel Sky Racer Mechanical runs a manual caliber (Seagull ST19), while the Tissot PRX UFO Robot Grendizer 50th Anniversary runs a automatic (Powermatic 80).

Side by side

Hemel Sky Racer MechanicalvsTissot PRX UFO Robot Grendizer 50th Anniversary

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

Hemel Sky Racer Mechanical

HF37MNB

MSRP $550

Tissot PRX UFO Robot Grendizer 50th Anniversary

t1374073305101

MSRP $1,100

At a glance

15 of 29 specs differ

Diameter

Sky Racer Mechanical43mm

PRX UFO Robot Grendizer 50th Anniversary40mm

Power Reserve

Sky Racer Mechanical40h

PRX UFO Robot Grendizer 50th Anniversary80h

Water Resistance

Sky Racer Mechanical50m

PRX UFO Robot Grendizer 50th Anniversary100m

MSRP

Sky Racer Mechanical$550

PRX UFO Robot Grendizer 50th Anniversary$1,100

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal

Domed Sapphire

Sapphire

AR Coating

Inner

Yes

Indices

Applied

Indexes

Lume

None

Super-LumiNova ®

Movement

3 specs

Caliber

Seagull ST19

Powermatic 80

Type

Manual

Automatic

Power Reserve

40h

80h

Pricing

1 specs

MSRP

$550

$1,100

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