Which is bigger, the Aera Instruments M-1 or the Spinnaker Fleuss Mechanical Chronograph?

The Spinnaker Fleuss Mechanical Chronograph wears larger at 43mm versus 39mm for the Aera Instruments M-1 — a 4mm difference across the dial.

Which has a longer power reserve, the Aera Instruments M-1 or the Spinnaker Fleuss Mechanical Chronograph?

The Aera Instruments M-1 carries a 42-hour power reserve against 40 hours on the Spinnaker Fleuss Mechanical Chronograph.

What movement does the Aera Instruments M-1 run compared to the Spinnaker Fleuss Mechanical Chronograph?

The Aera Instruments M-1 runs a manual caliber (Sellita SW216-1), while the Spinnaker Fleuss Mechanical Chronograph runs a mechanical (Seagull ST1908).

Side by side

Aera Instruments M-1vsSpinnaker Fleuss Mechanical Chronograph

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

Aera Instruments M-1

Spinnaker Fleuss Mechanical Chronograph

fleuss-mechanical-chronograph-spongebob-squarepants-eyedial-limited-edition-googly-black-sp-5153-02

MSRP $550

At a glance

12 of 29 specs differ

Diameter

M-139mm

Fleuss Mechanical Chronograph43mm

Power Reserve

M-142h

Fleuss Mechanical Chronograph40h

Water Resistance

M-1100m

Fleuss Mechanical Chronograph100m

MSRP

M-1—

Fleuss Mechanical Chronograph$550

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Dial Color

Dune

Black

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

Sellita SW216-1

Seagull ST1908

Type

Manual

Automatic

Power Reserve

42h

40h

Pricing

1 specs

MSRP

—

$550

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