Which is cheaper, the Seiko King Turtle or the Undone AquaLume Automatic?

At MSRP the Undone AquaLume Automatic is the cheaper of the two at $395, against $650 for the Seiko King Turtle — a $255 gap before any retailer discounting.

Which is bigger, the Seiko King Turtle or the Undone AquaLume Automatic?

The Seiko King Turtle wears larger at 45mm versus 43mm for the Undone AquaLume Automatic — a 2mm difference across the dial.

Which has better water resistance, the Seiko King Turtle or the Undone AquaLume Automatic?

The Undone AquaLume Automatic is rated to 500m versus 200m for the Seiko King Turtle.

What movement does the Seiko King Turtle run compared to the Undone AquaLume Automatic?

Both watches run automatic movements — the Seiko King Turtle uses the 4R36 and the Undone AquaLume Automatic uses the NH35.

Side by side

Seiko King TurtlevsUndone AquaLume Automatic

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

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Seiko King Turtle

MSRP $650

See the full King Turtle

Undone AquaLume Automatic

MSRP $395

See the full AquaLume Automatic

At a glance

15 of 29 specs differ

Diameter

King Turtle45mm

AquaLume Automatic43mm

Power Reserve

King Turtle41h

AquaLume Automatic—

Water Resistance

King Turtle200m

AquaLume Automatic500m

MSRP

King Turtle$650

AquaLume Automatic$395

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal

Sapphire

—

AR Coating

Anti-reflective coating on inner surface

—

Dial Color

—

Lume

LumiBrite on hands and index(es)

None

Movement

3 specs

Caliber

4R36

NH35

Power Reserve

41h

—

Jewels

Pricing

1 specs

MSRP

$650

$395

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Seiko King TurtlevsUndone AquaLume Automatic

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