Side by side

A-13A A-13AvsSlow Watches Twelve

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

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A-13A
A-13AA-13A
Twelve
Slow WatchesTwelve
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Buy used on eBay ↗
Buy from Slow Watches ↗
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At a glance

6 of 29 specs differ
Diameter
A-13A42mm
Twelve40mm
Power Reserve
A-13A—
Twelve—
Water Resistance
A-13A100m
Twelve100m
MSRP
A-13A—
Twelve—

Full specifications

Case

4 specs
Diameter
42mm
40mm
Thickness
13.4mm
8.25mm
Lug-to-Lug
50.8mm
46mm
Lug Width
20mm
—

Crystal & Dial

1 specs
Dial Color
—
Blue

Movement

1 specs
Caliber
ETA 251.264
Ronda 515.24
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