Which is cheaper, the S.U.F Helsinki 180NN or the Seiko Prospex SPEEDTIMER Mechanical?

At MSRP the Seiko Prospex SPEEDTIMER Mechanical is the cheaper of the two at $995, against $3,480 for the S.U.F Helsinki 180NN — a $2,485 gap before any retailer discounting.

Which is bigger, the S.U.F Helsinki 180NN or the Seiko Prospex SPEEDTIMER Mechanical?

The Seiko Prospex SPEEDTIMER Mechanical wears larger at 39.5mm versus 38.7mm for the S.U.F Helsinki 180NN — a 0.8mm difference across the dial.

Which has better water resistance, the S.U.F Helsinki 180NN or the Seiko Prospex SPEEDTIMER Mechanical?

The S.U.F Helsinki 180NN is rated to 100m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical.

Which has a longer power reserve, the S.U.F Helsinki 180NN or the Seiko Prospex SPEEDTIMER Mechanical?

The Seiko Prospex SPEEDTIMER Mechanical carries a 72-hour power reserve against 42 hours on the S.U.F Helsinki 180NN.

What movement does the S.U.F Helsinki 180NN run compared to the Seiko Prospex SPEEDTIMER Mechanical?

Both watches run automatic movements — the S.U.F Helsinki 180NN uses the Soprod A10 and the Seiko Prospex SPEEDTIMER Mechanical uses the 6R55.

Side by side

S.U.F Helsinki 180NNvsSeiko Prospex SPEEDTIMER Mechanical

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

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S.U.F Helsinki 180NN

180nn

MSRP $3,480

Seiko Prospex SPEEDTIMER Mechanical

spb513j1

MSRP $995

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At a glance

13 of 29 specs differ

Diameter

180NN38.7mm

Prospex SPEEDTIMER Mechanical39.5mm

Power Reserve

180NN42h

Prospex SPEEDTIMER Mechanical72h

Water Resistance

180NN100m

Prospex SPEEDTIMER Mechanical200m

MSRP

180NN$3,480

Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

6 specs

Crystal & Dial

3 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Soprod A10

6R55

Power Reserve

42h

72h

Jewels

Pricing

1 specs

MSRP

—

$995

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S.U.F Helsinki 180NNvsSeiko Prospex SPEEDTIMER Mechanical

At a glance

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