Side by side

Aera Instruments D-1vsFormex Essence FortyOne

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

Add a watch
D-1
Aera InstrumentsD-1
MSRP $2,000
See the full D-1
Essence FortyOne
FormexEssence FortyOne
MSRP $1,890
See the full Essence FortyOne
Buy from Aera Instruments ↗
Buy used on eBay ↗
Buy from Formex ↗
Buy used on eBay ↗

At a glance

8 of 29 specs differ
Diameter
D-144mm
Essence FortyOne41mm
Power Reserve
D-141h
Essence FortyOne41h
Water Resistance
D-1300m
Essence FortyOne100m
MSRP
D-1$2,000
Essence FortyOne$1,890

Full specifications

Case

5 specs
Category
—
Dress
Diameter
44mm
41mm
Thickness
15.9mm
10.6mm
Lug-to-Lug
49.55mm
46.5mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
—
Arctic White
Lume
None
Super-LumiNova

Pricing

1 specs
MSRP
$2,000
$1,890
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.

Crafter Blue Hyperion Ocean
Crafter Bluemicro

Hyperion Ocean

2 variantsSeries
45mm·Automatic·600m WR
—MSRP
—Used
Aigi Watches Royal Danish Air Force
Aigi Watchesmicro

Royal Danish Air Force

40mm·Automatic·200m WR
$858MSRP
—Used
Whitby Watch Co. Ad Mare Dive Watch
Whitby Watch Co.micro

Ad Mare Dive Watch

7 variantsSeries
44mm·Automatic·200m WR
$979MSRP
—Used
DuFrane Watches Whitney Lauren Collaboration 2025
DuFrane Watchesmicro

Whitney Lauren Collaboration 2025

16 variantsSeries
42mm·Automatic·100m WR
—MSRP
—Used
BOLDR Supply Co. Odyssey Black Abyss
BOLDR Supply Co.micro

Odyssey Black Abyss

45.5mm·Automatic·500m WR
$799MSRP
—Used
DuFrane Watches Barton Springs III 42mm Mechanical Diving Watch
DuFrane Watchesmicro

Barton Springs III 42mm Mechanical Diving Watch

2 variantsSeries
42mm·Automatic·200m WR
—MSRP
—Used
Limes Leviathan . S
Limesmicro

Leviathan . S

44.5mm·Automatic·1000m WR
—MSRP
—Used
Alexander Shorokhoff Flensi
Alexander Shorokhoffmicro

Flensi

3 variantsSeries
45mm·Automatic·100m WR
$2,353MSRP
—Used
All alternatives to the D-1 →All alternatives to the Essence FortyOne →
Explore the full catalog

Follow this matchup

Get a note when Aera Instruments D-1 vs Formex Essence FortyOne 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.

Aera Instruments D-1 DivervsFormex Essence FortyOneCrafter Blue Hyperion OceanvsFormex Essence FortyOneFormex Essence FortyOnevsLimes Leviathan LCWC (Cabot Watch Company) E9 Automatic Diver WatchvsFormex Essence FortyOneAera Instruments D-1vsFormex Essence FortythreeAera Instruments D-1vsFormex Essence ThirtyNine
Edit this comparisonAdd another watchExplore more 40–45mm watches