Which is cheaper, the Seiko Prospex Land Mechanical GMT or the Spinnaker Tesei Forged Carbon?

At MSRP the Spinnaker Tesei Forged Carbon is the cheaper of the two at $550, against $1,150 for the Seiko Prospex Land Mechanical GMT — a $600 gap before any retailer discounting.

Which is bigger, the Seiko Prospex Land Mechanical GMT or the Spinnaker Tesei Forged Carbon?

The Spinnaker Tesei Forged Carbon wears larger at 43mm versus 39.5mm for the Seiko Prospex Land Mechanical GMT — a 3.5mm difference across the dial.

Which has better water resistance, the Seiko Prospex Land Mechanical GMT or the Spinnaker Tesei Forged Carbon?

The Spinnaker Tesei Forged Carbon is rated to 300m versus 20m for the Seiko Prospex Land Mechanical GMT.

Which has a longer power reserve, the Seiko Prospex Land Mechanical GMT or the Spinnaker Tesei Forged Carbon?

The Seiko Prospex Land Mechanical GMT carries a 72-hour power reserve against 40 hours on the Spinnaker Tesei Forged Carbon.

What movement does the Seiko Prospex Land Mechanical GMT run compared to the Spinnaker Tesei Forged Carbon?

Both watches run automatic movements — the Seiko Prospex Land Mechanical GMT uses the 6R54 and the Spinnaker Tesei Forged Carbon uses the SII NH35A.

Side by side

Seiko Prospex Land Mechanical GMTvsSpinnaker Tesei Forged Carbon

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

Seiko Prospex Land Mechanical GMT

spb377j1

MSRP $1,150

Spinnaker Tesei Forged Carbon

tesei-forged-carbon-automatic-limited-edition-white-frost-sp-5143-01

MSRP $550

At a glance

15 of 29 specs differ

Diameter

Prospex Land Mechanical GMT39.5mm

Tesei Forged Carbon43mm

Power Reserve

Prospex Land Mechanical GMT72h

Tesei Forged Carbon40h

Water Resistance

Prospex Land Mechanical GMT200m

Tesei Forged Carbon300m

MSRP

Prospex Land Mechanical GMT$1,150

Tesei Forged Carbon$550

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal Shape

Curved

Flat

AR Coating

Anti-reflective coating on inner surface

Inner

Dial Color

Black

White

Lume

LumiBrite on hands and index(es)

None

Movement

3 specs

Caliber

6R54

SII NH35A

Power Reserve

72h

40h

Jewels

Pricing

1 specs

MSRP

$1,150

$550

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