Which is cheaper, the Decima Scylla or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

At MSRP the Decima Scylla is the cheaper of the two at $899, against $1,150 for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a $251 gap before any retailer discounting.

Which is bigger, the Decima Scylla or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Decima Scylla wears larger at 44mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a 4.5mm difference across the dial.

Which has better water resistance, the Decima Scylla or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Decima Scylla is rated to 500m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition.

Which has a longer power reserve, the Decima Scylla or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition carries a 72-hour power reserve against 38 hours on the Decima Scylla.

What movement does the Decima Scylla run compared to the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

Both watches run automatic movements — the Decima Scylla uses the Sellita SW200-1 and the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition uses the 6R55.

Side by side

Decima ScyllavsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

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

Add a watch

Decima Scylla

scylla-green

MSRP $899

Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

spb517j1

MSRP $1,150

At a glance

15 of 29 specs differ

Diameter

Scylla44mm

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm

Power Reserve

Scylla38h

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h

Water Resistance

Scylla500m

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m

MSRP

Scylla$899

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition$1,150

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Green

Black

Lume

SuperLuminova

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Sellita SW200-1

6R55

Power Reserve

38h

72h

Jewels

Pricing

1 specs

MSRP

$899

$1,150

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Ezamicro

Follow this matchup

Get a note when Decima Scylla vs Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Eza SealandervsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition Memphis Belle Predator Evolution Militech Versione FissavsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited EditionvsSpinnaker Tesei Bronze Swiss Limes Leviathan LvsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition Decima ScyllavsYema Flygraf Navigator Decima ScyllavsYema Navygraf Chrono

Edit this comparison Add another watch Explore more 38–45mm watches

Decima ScyllavsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

At a glance

Full specifications

More watches worth a look

Sealander

Flygraf Navigator

Predator Evolution Militech Versione Fissa

Navygraf Chrono

Tesei Bronze Swiss

Douglas Grand Prix Racing

Leviathan L

HFC Mechanical Chronograph

Follow this matchup

People also compared