Which is cheaper, the Orient Star Diver or the Sinn U2 S (EZM 5)?

At MSRP the Orient Star Diver is the cheaper of the two at $585, against $3,802 for the Sinn U2 S (EZM 5) — a $3,217 gap before any retailer discounting.

Which is bigger, the Orient Star Diver or the Sinn U2 S (EZM 5)?

The Sinn U2 S (EZM 5) wears larger at 44mm versus 43.6mm for the Orient Star Diver — a 0.4mm difference across the dial.

Which has better water resistance, the Orient Star Diver or the Sinn U2 S (EZM 5)?

The Sinn U2 S (EZM 5) is rated to 2000m versus 200m for the Orient Star Diver.

Which has a longer power reserve, the Orient Star Diver or the Sinn U2 S (EZM 5)?

The Orient Star Diver carries a 50-hour power reserve against 48 hours on the Sinn U2 S (EZM 5).

What movement does the Orient Star Diver run compared to the Sinn U2 S (EZM 5)?

Both watches run automatic movements — the Orient Star Diver uses the Orient F6N47 and the Sinn U2 S (EZM 5) uses the Sellita SW330-2.

Side by side

Orient Star DivervsSinn U2 S (EZM 5)

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

Sinn U2 S (EZM 5)

U2 S (EZM 5)

MSRP $3,802

See the full U2 S (EZM 5)

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At a glance

16 of 29 specs differ

Diameter

Diver43.6mm

U2 S (EZM 5)44mm

Power Reserve

Diver50h

U2 S (EZM 5)48h

Water Resistance

Diver200m

U2 S (EZM 5)2,000m

MSRP

Diver$585

U2 S (EZM 5)$3,802

Full specifications

Case

6 specs

Diameter

43.6mm

44mm

Thickness

14mm

15.5mm

Lug-to-Lug

51.1mm

—

Finish

—

black

Water Resistance

200m

2000m

Caseback

—

Crystal & Dial

4 specs

Crystal Shape

—

AR Coating

Yes

Underside

Indices

—

Lume

None

Luminescent

Movement

5 specs

Caliber

Orient F6N47

Sellita SW330-2

Beat Rate

0 vph

28,800 vph

Power Reserve

50h

48h

Jewels

Complications

None

GMT, Date

Pricing

1 specs

MSRP

$585

$3,802

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