Side by side

Aera Instruments C-1vsSinn U18

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

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C-1
Aera InstrumentsC-1
MSRP $2,200
U18
SinnU18
MSRP $3,488
Buy from Aera Instruments ↗
Buy used on eBay ↗
Buy from Sinn ↗
Buy used on eBay ↗

At a glance

16 of 29 specs differ
Diameter
C-142mm
U1844mm
Power Reserve
C-156h
U1842h
Water Resistance
C-1100m
U182,000m
MSRP
C-1$2,200
U18$3,488

Full specifications

Case

8 specs
Category
—
Diver
Diameter
42mm
44mm
Thickness
15.75mm
15.5mm
Lug-to-Lug
49.55mm
—
Material
Stainless Steel
high-strength
Finish
Brushed and polished
—
Water Resistance
100m
2000m
Caseback
Solid
—

Crystal & Dial

4 specs
Crystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Cloud
Black
Indices
Applied
—

Movement

3 specs
Caliber
SW510 BH B
Sellita SW300-1
Power Reserve
56h
42h
Jewels
27
25

Pricing

1 specs
MSRP
$2,200
$3,488
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Manufaktur Waldhoff OlympusvsSinn U18Lucky Harvey Green SnakevsSinn U18Robot Watches MinorvsSinn U18Bremont ALT1-CvsSinn U18Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsAera Instruments C-1Aera Instruments C-1vsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic
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