Which is cheaper, the CWC RN81 Clearance Diver Automatic Watch or the Seiko Prospex Land Mechanical?

At MSRP the Seiko Prospex Land Mechanical is the cheaper of the two at $995, against $1,875 for the CWC RN81 Clearance Diver Automatic Watch — a $880 gap before any retailer discounting.

Which is bigger, the CWC RN81 Clearance Diver Automatic Watch or the Seiko Prospex Land Mechanical?

The CWC RN81 Clearance Diver Automatic Watch wears larger at 41mm versus 39.5mm for the Seiko Prospex Land Mechanical — a 1.5mm difference across the dial.

Which has better water resistance, the CWC RN81 Clearance Diver Automatic Watch or the Seiko Prospex Land Mechanical?

The CWC RN81 Clearance Diver Automatic Watch is rated to 300m versus 20m for the Seiko Prospex Land Mechanical.

Which has a longer power reserve, the CWC RN81 Clearance Diver Automatic Watch or the Seiko Prospex Land Mechanical?

The Seiko Prospex Land Mechanical carries a 72-hour power reserve against 40 hours on the CWC RN81 Clearance Diver Automatic Watch.

What movement does the CWC RN81 Clearance Diver Automatic Watch run compared to the Seiko Prospex Land Mechanical?

Both watches run automatic movements — the CWC RN81 Clearance Diver Automatic Watch uses the Sellita SW200-1 and the Seiko Prospex Land Mechanical uses the 6R55.

Side by side

CWC RN81 Clearance Diver Automatic WatchvsSeiko Prospex Land Mechanical

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

Add a watch

CWC RN81 Clearance Diver Automatic Watch

cwc-rn81-clearance-diver-watch

MSRP $1,875

Seiko Prospex Land Mechanical

spb503j1

MSRP $995

At a glance

12 of 29 specs differ

Diameter

RN81 Clearance Diver Automatic Watch41mm

Prospex Land Mechanical39.5mm

Power Reserve

RN81 Clearance Diver Automatic Watch40h

Prospex Land Mechanical72h

Water Resistance

RN81 Clearance Diver Automatic Watch300m

Prospex Land Mechanical200m

MSRP

RN81 Clearance Diver Automatic Watch$1,875

Prospex Land Mechanical$995

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

CWC RN81 Clearance Diver Automatic Watch

Black

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Sellita SW200-1

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$1,875

$995

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.

Sheffieldmicro

Follow this matchup

Get a note when CWC RN81 Clearance Diver Automatic Watch vs Seiko Prospex Land Mechanical 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.

CWC RN Automatic Divers Watch Mk.2vsSeiko Prospex Land Mechanical CWC Automatic Divers Watch Mk.2 BlackvsSeiko Prospex Land Mechanical CWC RN Automatic Divers Watch Mk.2 with DatevsSeiko Prospex Land Mechanical Sheffield SUPERPRODUCTIONvsSeiko Prospex Land Mechanical CWC RN81 Clearance Diver Automatic WatchvsBoldr Marine Boldr BlastoisevsCWC RN81 Clearance Diver Automatic Watch

Edit this comparison Add another watch Explore more 38–42mm watches

CWC RN81 Clearance Diver Automatic WatchvsSeiko Prospex Land Mechanical

At a glance

Full specifications

More watches worth a look

SUPERPRODUCTION

Marine

Jeep Rubicon GSAR

Blastoise

GSAR (Government Search & Rescue) Diver's Automatic

Croft

Nereide Malachite

Voyager

Follow this matchup

People also compared