Which is cheaper, the Aera Instruments C-1 or the Seiko Captain Willard?

At MSRP the Seiko Captain Willard is the cheaper of the two at $1,300, against $2,200 for the Aera Instruments C-1 — a $900 gap before any retailer discounting.

Which is bigger, the Aera Instruments C-1 or the Seiko Captain Willard?

The Seiko Captain Willard wears larger at 42.7mm versus 42mm for the Aera Instruments C-1 — a 0.7mm difference across the dial.

Which has better water resistance, the Aera Instruments C-1 or the Seiko Captain Willard?

The Seiko Captain Willard is rated to 200m versus 100m for the Aera Instruments C-1.

Which has a longer power reserve, the Aera Instruments C-1 or the Seiko Captain Willard?

The Seiko Captain Willard carries a 70-hour power reserve against 56 hours on the Aera Instruments C-1.

What movement does the Aera Instruments C-1 run compared to the Seiko Captain Willard?

Both watches run automatic movements — the Aera Instruments C-1 uses the SW510 BH B and the Seiko Captain Willard uses the Seiko 6R35.

Side by side

Aera Instruments C-1vsSeiko Captain Willard

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

Seiko Captain Willard

MSRP $1,300

See the full Captain Willard

Buy from Aera Instruments ↗

Buy used on eBay ↗

Buy from Seiko ↗

Buy used on eBay ↗

At a glance

14 of 29 specs differ

Diameter

C-142mm

Captain Willard42.7mm

Power Reserve

C-156h

Captain Willard70h

Water Resistance

C-1100m

Captain Willard200m

MSRP

C-1$2,200

Captain Willard$1,300

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal Shape

—

Curved

AR Coating

—

underside

Dial Color

Cloud

Black

Lume

None

LumiBrite

Movement

3 specs

Caliber

SW510 BH B

Seiko 6R35

Power Reserve

56h

70h

Jewels

Pricing

1 specs

MSRP

$2,200

$1,300

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 Seiko Captain Willard 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.

Geckota Classic ChronotimervsSeiko Captain Willard Seiko Captain WillardvsZero West L4 Longitude Orologi Calamai G50 CRONOvsSeiko Captain Willard Orient Star Layered SkeletonvsSeiko Captain Willard Aera Instruments C-1vsSpinnaker Tesei Titanium Aera Instruments C-1vsSpinnaker Croft Pioneer

Edit this comparison Add another watch Explore more 41–44mm watches

Aera Instruments C-1vsSeiko Captain Willard

At a glance

Full specifications

More watches worth a look

Cosmos

Sea-Hunter Dive Watch

S6e Spitfire Escape

Phalanx

AV1 Vulcan

1980 RN Divers Automatic Re-Issue Watch

Cristallo Professional Diver 500m

6BB-WR Watch Black Dial

Follow this matchup

People also compared