Which is cheaper, the Aera Instruments C-1 or the Praesidus Type H-75?

At MSRP the Praesidus Type H-75 is the cheaper of the two at $245, against $2,200 for the Aera Instruments C-1 — a $1,955 gap before any retailer discounting.

Which is bigger, the Aera Instruments C-1 or the Praesidus Type H-75?

The Aera Instruments C-1 wears larger at 42mm versus 39mm for the Praesidus Type H-75 — a 3mm difference across the dial.

Which has a longer power reserve, the Aera Instruments C-1 or the Praesidus Type H-75?

The Aera Instruments C-1 carries a 56-hour power reserve against 40 hours on the Praesidus Type H-75.

What movement does the Aera Instruments C-1 run compared to the Praesidus Type H-75?

The Aera Instruments C-1 runs a automatic caliber (SW510 BH B), while the Praesidus Type H-75 runs a quartz (Seiko VK63 Meca-Quartz).

Side by side

Aera Instruments C-1vsPraesidus Type H-75

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

Aera Instruments C-1

MSRP $2,200

Praesidus Type H-75

type-h-75-black-canvas

MSRP $245

At a glance

12 of 29 specs differ

Diameter

C-142mm

Type H-7539mm

Power Reserve

C-156h

Type H-7540h

Water Resistance

C-1100m

Type H-75100m

MSRP

C-1$2,200

Type H-75$245

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Dial Color

Cloud

Black

Movement

4 specs

Caliber

SW510 BH B

Seiko VK63 Meca-Quartz

Type

Automatic

Quartz

Power Reserve

56h

40h

Jewels

Pricing

1 specs

MSRP

$2,200

$245

Follow this matchup

Get a note when Aera Instruments C-1 vs Praesidus Type H-75 gets more votes, a community discussion, or a price drop. No account needed.

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.

Bremontmicro

Adjacent matchups

People also compared

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

Bremont ALT1-CvsPraesidus Type H-75 Fortis Flieger F-43 BicompaxvsPraesidus Type H-75 Bremont Terra Nova 42.5 ChronographvsPraesidus Type H-75 CWC 6BB-WRvsPraesidus Type H-75 Aera Instruments C-1vsYema Flygraf Bi-Compax French Air Force Aera Instruments C-1vsSpinnaker Fleuss Chronograph

Edit this comparison Add another watch Explore more 38–43mm watches

Aera Instruments C-1vsPraesidus Type H-75

At a glance

Full specifications

Follow this matchup

More watches worth a look

ALT1-C

Flygraf Bi-Compax French Air Force

Flieger F-43 Bicompax

Fleuss Chronograph

Terra Nova 42.5 Chronograph

HFT20

6BB-WR

Steel Navigator SSNAV Quartz

People also compared