Which is cheaper, the CWC Automatic Divers Watch Mk.2 Black with Date or the Longines PrimaLuna?

At MSRP the CWC Automatic Divers Watch Mk.2 Black with Date is the cheaper of the two at $1,249, against $2,950 for the Longines PrimaLuna — a $1,701 gap before any retailer discounting.

Which is bigger, the CWC Automatic Divers Watch Mk.2 Black with Date or the Longines PrimaLuna?

The CWC Automatic Divers Watch Mk.2 Black with Date wears larger at 41mm versus 34mm for the Longines PrimaLuna — a 7mm difference across the dial.

Which has better water resistance, the CWC Automatic Divers Watch Mk.2 Black with Date or the Longines PrimaLuna?

The CWC Automatic Divers Watch Mk.2 Black with Date is rated to 300m versus 30m for the Longines PrimaLuna.

Which has a longer power reserve, the CWC Automatic Divers Watch Mk.2 Black with Date or the Longines PrimaLuna?

The Longines PrimaLuna carries a 72-hour power reserve against 40 hours on the CWC Automatic Divers Watch Mk.2 Black with Date.

What movement does the CWC Automatic Divers Watch Mk.2 Black with Date run compared to the Longines PrimaLuna?

Both watches run automatic movements — the CWC Automatic Divers Watch Mk.2 Black with Date uses the Sellita SW200-1 and the Longines PrimaLuna uses the L899.5.

Side by side

CWC Automatic Divers Watch Mk.2 Black with DatevsLongines PrimaLuna

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

CWC Automatic Divers Watch Mk.2 Black with Date

cwc-royal-navy-black-diver-automatic-mk-2-with-date

MSRP $1,249

Longines PrimaLuna

L8.126.4.97.6

MSRP $2,950

At a glance

20 of 29 specs differ

Diameter

Automatic Divers Watch Mk.2 Black with Date41mm

PrimaLuna34mm

Power Reserve

Automatic Divers Watch Mk.2 Black with Date40h

PrimaLuna72h

Water Resistance

Automatic Divers Watch Mk.2 Black with Date300m

PrimaLuna30m

MSRP

Automatic Divers Watch Mk.2 Black with Date$1,249

PrimaLuna$2,950

Full specifications

Case

8 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

—

AR Coating

Inner

Both sides

Dial Color

CWC Automatic Divers Watch Mk.2 Black with Date (SF300 AS120-D)

Blue

Indices

Applied

Diamond indexes

Movement

7 specs

Caliber

Sellita SW200-1

L899.5

Beat Rate

28,800 vph

25,200 vph

Power Reserve

40h

72h

Jewels

Hacking

Yes

Hand-winding

Yes

Complications

None

Hours, minutes, seconds and date, Moon phase display at 6 o'clock

Pricing

1 specs

MSRP

$1,249

$2,950

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