Which is cheaper, the Seiko Prospex Sea Save the Ocean Special Edition or the Undone Basecamp Cali Automatic?

At MSRP the Undone Basecamp Cali Automatic is the cheaper of the two at $325, against $550 for the Seiko Prospex Sea Save the Ocean Special Edition — a $225 gap before any retailer discounting.

Which is bigger, the Seiko Prospex Sea Save the Ocean Special Edition or the Undone Basecamp Cali Automatic?

The Seiko Prospex Sea Save the Ocean Special Edition wears larger at 42.4mm versus 40mm for the Undone Basecamp Cali Automatic — a 2.4mm difference across the dial.

What movement does the Seiko Prospex Sea Save the Ocean Special Edition run compared to the Undone Basecamp Cali Automatic?

Both watches run automatic movements — the Seiko Prospex Sea Save the Ocean Special Edition uses the Seiko 4R36 and the Undone Basecamp Cali Automatic uses the Seiko NH35.

Side by side

Seiko Prospex Sea Save the Ocean Special EditionvsUndone Basecamp Cali Automatic

Q: Which has better water resistance, the Seiko Prospex Sea Save the Ocean Special Edition or the Undone Basecamp Cali Automatic?

The Seiko Prospex Sea Save the Ocean Special Edition is rated to 200m versus 100m for the Undone Basecamp Cali Automatic.

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

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Seiko Prospex Sea Save the Ocean Special Edition

MSRP $550

See the full Prospex Sea Save the Ocean Special Edition

Undone Basecamp Cali Automatic

MSRP $325

See the full Basecamp Cali Automatic

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At a glance

13 of 29 specs differ

Diameter

Prospex Sea Save the Ocean Special Edition42.4mm

Basecamp Cali Automatic40mm

Power Reserve

Prospex Sea Save the Ocean Special Edition41h

Basecamp Cali Automatic—

Water Resistance

Prospex Sea Save the Ocean Special Edition200m

Basecamp Cali Automatic100m

MSRP

Prospex Sea Save the Ocean Special Edition$550

Basecamp Cali Automatic$325

Full specifications

Case

6 specs

Crystal & Dial

3 specs

Crystal

Hardlex

—

Dial Color

—

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

3 specs

Caliber

Seiko 4R36

Seiko NH35

Power Reserve

41h

—

Jewels

Pricing

1 specs

MSRP

$550

$325

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Seiko Prospex Sea Save the Ocean Special EditionvsUndone Basecamp Cali Automatic

At a glance

Full specifications

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