|Diameter:||18.40 mm (8.25 ligne)|
|Hands:||Central Hour Hand, Central Minute Hand, Small Seconds Hand at 6:00|
|Distinguishing Technical Characteristics|
Clockwise Balance Cock
Cal. FP 816 (also known as Cal. FP 8.16) is an ultra-thin movement from Frédéric Piguet. As an ultra-thin movement it uses a flat hairspring.
It is closely related to Cal. FP 815, an automatic, and Cal. FP 810, which lacks a seconds hand.