Which is cheaper, the Aera Instruments C-1 or the CWC Automatic Divers Watch Mk.2 Black with Date?

At MSRP the CWC Automatic Divers Watch Mk.2 Black with Date is the cheaper of the two at $1,249, against $2,200 for the Aera Instruments C-1 — a $951 gap before any retailer discounting.

Which is bigger, the Aera Instruments C-1 or the CWC Automatic Divers Watch Mk.2 Black with Date?

The Aera Instruments C-1 wears larger at 42mm versus 41mm for the CWC Automatic Divers Watch Mk.2 Black with Date — a 1mm difference across the dial.

Which has better water resistance, the Aera Instruments C-1 or the CWC Automatic Divers Watch Mk.2 Black with Date?

The CWC Automatic Divers Watch Mk.2 Black with Date is rated to 300m versus 100m for the Aera Instruments C-1.

Which has a longer power reserve, the Aera Instruments C-1 or the CWC Automatic Divers Watch Mk.2 Black with Date?

The Aera Instruments C-1 carries a 56-hour power reserve against 40 hours on the CWC Automatic Divers Watch Mk.2 Black with Date.

What movement does the Aera Instruments C-1 run compared to the CWC Automatic Divers Watch Mk.2 Black with Date?

Both watches run automatic movements — the Aera Instruments C-1 uses the SW510 BH B and the CWC Automatic Divers Watch Mk.2 Black with Date uses the Sellita SW200-1.

Side by side

Aera Instruments C-1vsCWC Automatic Divers Watch Mk.2 Black with Date

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

Add a watch

Aera Instruments C-1

MSRP $2,200

See the full C-1

CWC Automatic Divers Watch Mk.2 Black with Date

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

MSRP $1,249

See the full Automatic Divers Watch Mk.2 Black with Date

Buy from Aera Instruments ↗

Buy used on eBay ↗

Buy from CWC ↗

Buy used on eBay ↗

At a glance

12 of 29 specs differ

Diameter

C-142mm

Automatic Divers Watch Mk.2 Black with Date41mm

Power Reserve

C-156h

Automatic Divers Watch Mk.2 Black with Date40h

Water Resistance

C-1100m

Automatic Divers Watch Mk.2 Black with Date300m

MSRP

C-1$2,200

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

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Dial Color

Cloud

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

Lume

None

Super-LumiNova

Movement

3 specs

Caliber

SW510 BH B

Sellita SW200-1

Power Reserve

56h

40h

Jewels

Pricing

1 specs

MSRP

$2,200

$1,249

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.

Colomer & Sonsmicro

Follow this matchup

Get a note when Aera Instruments C-1 vs CWC Automatic Divers Watch Mk.2 Black with Date 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 Automatic Divers Watch Mk.2 Black with DatevsGeckota Classic Chronotimer CWC Automatic Divers Watch Mk.2 Black with DatevsZero West L4 Longitude CWC Automatic Divers Watch Mk.2 Black with DatevsOrologi Calamai G50 CRONO CWC Automatic Divers Watch Mk.2 Black with DatevsOmologato Classic Timer Aera Instruments C-1vsCWC RN Automatic Divers Watch Mk.2 with Date Aera Instruments C-1vsCWC RN Automatic Divers Watch Mk.2

Edit this comparison Add another watch Explore more 40–43mm watches

Aera Instruments C-1vsCWC Automatic Divers Watch Mk.2 Black with Date

At a glance

Full specifications

More watches worth a look

Cosmos

GSAR (Government Search & Rescue) Diver's Automatic

L4 Longitude

Jeep Rubicon GSAR

AV1 Vulcan

Expedition II

Nereide Aureo 42

6BB-WR Watch Black Dial

Follow this matchup

People also compared