Which is cheaper, the Orient Star Diver or the Seiko 5KX?

At MSRP the Seiko 5KX is the cheaper of the two at $350, against $585 for the Orient Star Diver — a $235 gap before any retailer discounting.

Which is bigger, the Orient Star Diver or the Seiko 5KX?

The Orient Star Diver wears larger at 43.6mm versus 42.5mm for the Seiko 5KX — a 1.1mm difference across the dial.

Which has better water resistance, the Orient Star Diver or the Seiko 5KX?

The Orient Star Diver is rated to 200m versus 10m for the Seiko 5KX.

Which has a longer power reserve, the Orient Star Diver or the Seiko 5KX?

The Orient Star Diver carries a 50-hour power reserve against 41 hours on the Seiko 5KX.

What movement does the Orient Star Diver run compared to the Seiko 5KX?

Both watches run automatic movements — the Orient Star Diver uses the Orient F6N47 and the Seiko 5KX uses the Seiko 4R36.

Side by side

Orient Star DivervsSeiko 5KX

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

Add a watch

Orient Star Diver

RE-AU0301B

MSRP $585

See the full Diver

Seiko 5KX

MSRP $350

See the full 5KX

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At a glance

13 of 29 specs differ

Diameter

Diver43.6mm

5KX42.5mm

Power Reserve

Diver50h

5KX41h

Water Resistance

Diver200m

5KX100m

MSRP

Diver$585

5KX$350

Full specifications

Case

5 specs

Diameter

43.6mm

42.5mm

Thickness

14mm

13.4mm

Lug-to-Lug

51.1mm

46mm

Finish

—

Water Resistance

200m

100m

Crystal & Dial

4 specs

Crystal

Sapphire

Hardlex

AR Coating

Yes

—

Dial Color

Black

—

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Orient F6N47

Seiko 4R36

Power Reserve

50h

41h

Jewels

Pricing

1 specs

MSRP

$585

$350

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Orient Star DivervsSeiko 5KX

At a glance

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