Which is cheaper, the Meia Lua Callisto or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

At MSRP the Meia Lua Callisto is the cheaper of the two at $661, against $1,150 for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a $489 gap before any retailer discounting.

Which is bigger, the Meia Lua Callisto or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Meia Lua Callisto wears larger at 42mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a 2.5mm difference across the dial.

Which has better water resistance, the Meia Lua Callisto or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Meia Lua Callisto is rated to 100m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition.

Which has a longer power reserve, the Meia Lua Callisto 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 40 hours on the Meia Lua Callisto.

What movement does the Meia Lua Callisto run compared to the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

Both watches run automatic movements — the Meia Lua Callisto uses the Miyota 9122 and the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition uses the 6R55.

Side by side

Meia Lua CallistovsSeiko 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

Meia Lua Callisto

callisto-ion-black

MSRP $661

Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

spb517j1

MSRP $1,150

At a glance

14 of 29 specs differ

Diameter

Callisto42mm

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm

Power Reserve

Callisto40h

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h

Water Resistance

Callisto100m

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m

MSRP

Callisto$661

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

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

—

Black

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Miyota 9122

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

—

$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.

Kuruvakkamicro

Follow this matchup

Get a note when Meia Lua Callisto 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.

Kuruvakka RAE-3vsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition Omologato Classic TimervsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition Loresum LS01vsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition Manufaktur Waldhoff OlympusvsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition Meia Lua CallistovsYema Flygraf Navigator Meia Lua CallistovsYema Navygraf Chrono

Edit this comparison Add another watch Explore more 38–43mm watches

Meia Lua CallistovsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

At a glance

Full specifications

More watches worth a look

RAE-3

Flygraf Navigator

Classic Timer

Navygraf Chrono

LS01

Douglas Grand Prix Racing

Olympus

HFC Mechanical Chronograph

Follow this matchup

People also compared