Alpina Caliber Al 860

Alpina Caliber AL-860

Alpina Caliber Al 860

Brand Alpina
Caliber Number AL-860
In-House?
No
Base Caliber
Sellita SW500
Movement Type Automatic, self-winding mechanical, chronograph
Lignes 13.25”’
Diameter
30mm
Height
7.9mm
Jewel Count
25
Beat Rate
28,8000 vph, 4 Hz
Lift Angle
50 degrees
Power Reserve
~46 hours
Rotor Style
Ball-bearing system
Rotor Winding Direction
Uni-directional
Hand-Windable?
Yes
Anti-Shock Device
Incabloc
Hand Count 5
Functions Central hours; central minutes; central chronograph seconds; small running seconds at 9:00; 30 minutes chronograph counter at 3:00
Hacking Seconds?
Yes
Country of Manufacture Switzerland, Swiss made
Known Models
Alpina Startimer Pilot Chronograph (AL-860B4S6) (Add your watch to the comments below…)

The Alpina caliber AL-860 is an automatic chronograph movement based on the Sellita SW500. According to Alpina, the AL-860 is not just a stock SW500 with a branded rotor, Alpina actually makes modifications of their own to make the movement function the way they desire for certain models.

In Alpina’s own words:

“Based on the Sellita SW500 chronograph movement, the AL-860 chronograph calibre has been modified by Alpina to feature a “Bi-Compax” counter configuration for maximum readability, suitable for professional aviation requirements. Thoughtfully designed by our engineers and machined in Geneva on our CNC machines, this modification is then carefully assembled in our Plan-les-Ouates workshops by our team of skilled watch makers.” –Source

At the time of this post, no watches powered by the AL860 were found on Alpina’s website.

Additional Resources:

*AL-860 specific instructions are on page 76 of the user manual

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