Which is cheaper, the Core Timepieces STONED or the Sinn U18?

At MSRP the Core Timepieces STONED is the cheaper of the two at $549, against $3,488 for the Sinn U18 — a $2,939 gap before any retailer discounting.

Which is bigger, the Core Timepieces STONED or the Sinn U18?

The Sinn U18 wears larger at 44mm versus 42mm for the Core Timepieces STONED — a 2mm difference across the dial.

Which has better water resistance, the Core Timepieces STONED or the Sinn U18?

The Sinn U18 is rated to 2000m versus 300m for the Core Timepieces STONED.

What movement does the Core Timepieces STONED run compared to the Sinn U18?

Both watches run automatic movements — the Core Timepieces STONED uses the Seiko NH36A and the Sinn U18 uses the SW300-1.

Side by side

Core Timepieces STONEDvsSinn U18

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

Add a watch

Core Timepieces STONED

MSRP $549

Sinn U18

U18

MSRP $3,488

Buy from Core Timepieces ↗

Buy used on eBay ↗

Buy from Sinn ↗

Buy used on eBay ↗

At a glance

15 of 29 specs differ

Diameter

STONED42mm

U1844mm

Power Reserve

STONED—

U1842h

Water Resistance

STONED300m

U182,000m

MSRP

STONED$549

U18$3,488

Full specifications

Case

8 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

—

AR Coating

Inner

—

Dial Color

Malachite Gemstone

Black

Indices

Applied

—

Movement

2 specs

Caliber

Seiko NH36A

SW300-1

Power Reserve

—

42h

Pricing

1 specs

MSRP

—

$3,488

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Core Timepieces STONEDvsSinn U18

At a glance

Full specifications

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