Pierce 135

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Calibre 135 is an alarm movement from Pierce produced in the 1950's and 1960's.

A novel improvement over other alarm movements is an adjustable alarm: Cal. 135 was called "Duo-Foni" because the alarm could be switched between a loud or quiet setting.

Description:

Manual winding movement

Functions:

Alarm function
Alarm volume switch

Data:

21 jewels

Production period:

1950's
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