Which is cheaper, the Oblvlo FM SL Day-Date Square or the Sinn U18?

At MSRP the Oblvlo FM SL Day-Date Square is the cheaper of the two at $158, against $3,488 for the Sinn U18 — a $3,330 gap before any retailer discounting.

Which is bigger, the Oblvlo FM SL Day-Date Square or the Sinn U18?

The Sinn U18 wears larger at 44mm versus 39mm for the Oblvlo FM SL Day-Date Square — a 5mm difference across the dial.

Which has better water resistance, the Oblvlo FM SL Day-Date Square or the Sinn U18?

The Sinn U18 is rated to 2000m versus 50m for the Oblvlo FM SL Day-Date Square.

Which has a longer power reserve, the Oblvlo FM SL Day-Date Square or the Sinn U18?

The Sinn U18 carries a 42-hour power reserve against 42 hours on the Oblvlo FM SL Day-Date Square.

What movement does the Oblvlo FM SL Day-Date Square run compared to the Sinn U18?

Both watches run automatic movements — the Oblvlo FM SL Day-Date Square uses the Miyota 8215 and the Sinn U18 uses the SW300-1.

Side by side

Oblvlo FM SL Day-Date SquarevsSinn U18

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

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Oblvlo FM SL Day-Date Square

FM-SL-DD-D

MSRP $158

Sinn U18

U18

MSRP $3,488

At a glance

16 of 29 specs differ

Diameter

FM SL Day-Date Square39mm

U1844mm

Power Reserve

FM SL Day-Date Square42h

U1842h

Water Resistance

FM SL Day-Date Square50m

U182,000m

MSRP

FM SL Day-Date Square$158

U18$3,488

Full specifications

Case

9 specs

Crystal & Dial

3 specs

Crystal Shape

Flat

—

AR Coating

Inner

—

Indices

Applied

—

Movement

3 specs

Caliber

Miyota 8215

SW300-1

Power Reserve

42h

Jewels

Pricing

1 specs

MSRP

$158

$3,488

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Oblvlo FM SL Day-Date SquarevsSinn U18

At a glance

Full specifications

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