Which is cheaper, the Feynman Timekeepers Cove or the Sinn U18?

At MSRP the Feynman Timekeepers Cove is the cheaper of the two at $1,045, against $3,488 for the Sinn U18 — a $2,443 gap before any retailer discounting.

Which is bigger, the Feynman Timekeepers Cove or the Sinn U18?

The Sinn U18 wears larger at 44mm versus 40mm for the Feynman Timekeepers Cove — a 4mm difference across the dial.

Which has better water resistance, the Feynman Timekeepers Cove or the Sinn U18?

The Sinn U18 is rated to 2000m versus 200m for the Feynman Timekeepers Cove.

Which has a longer power reserve, the Feynman Timekeepers Cove or the Sinn U18?

The Feynman Timekeepers Cove carries a 50-hour power reserve against 42 hours on the Sinn U18.

What movement does the Feynman Timekeepers Cove run compared to the Sinn U18?

Both watches run automatic movements — the Feynman Timekeepers Cove uses the ETA 2895-2 and the Sinn U18 uses the SW300-1.

Side by side

Feynman Timekeepers CovevsSinn U18

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

Add a watch

Feynman Timekeepers Cove

feynman-cove-shadow

MSRP $1,045

Sinn U18

U18

MSRP $3,488

Buy from Feynman Timekeepers ↗

Buy used on eBay ↗

Buy from Sinn ↗

Buy used on eBay ↗

At a glance

16 of 29 specs differ

Diameter

Cove40mm

U1844mm

Power Reserve

Cove50h

U1842h

Water Resistance

Cove200m

U182,000m

MSRP

Cove$1,045

U18$3,488

Full specifications

Case

9 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

—

AR Coating

Inner

—

Indices

Applied

—

Lume

C3 X1-grade Swiss SuperLuminova

None

Movement

2 specs

Caliber

ETA 2895-2

SW300-1

Power Reserve

50h

42h

Pricing

1 specs

MSRP

$1,045

$3,488

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Pook Watchesmicro

Follow this matchup

Get a note when Feynman Timekeepers Cove vs Sinn U18 gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Pook Watches YesterwyndevsSinn U18 Eza 1972 DivervsSinn U18 Cooper Watches MWC 1999-2001 Pattern Automatic Military Divers Watch with Sapphire CrystallvsSinn U18 Marloe Watch Company Motorsport 25vsSinn U18 Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsFeynman Timekeepers Cove Feynman Timekeepers CovevsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

Edit this comparison Add another watch Explore more 39–45mm watches

Feynman Timekeepers CovevsSinn U18

At a glance

Full specifications

More watches worth a look

Yesterwynde

OSAR-D (Original SAR with Date) Automatic 46mm

1972 Diver

JDD (Jumbo Day/Date) Anthracite Diver's Automatic

MWC 1999-2001 Pattern Automatic Military Divers Watch with Sapphire Crystall

S502

Motorsport 25

Marinemaster M-44 DLC

Follow this matchup

People also compared