Audemars Piguet Caliber 2124

Brand	Audemars Piguet
Caliber Number	2124
In-House?	No
Manufacturer	LeCoultre & Cie
Movement Type	Automatic, self-winding mechanical
Lignes	11.5”’
Diameter	26mm
Height	3.25mm
Jewel Count	32 / 33 / 35 jewels
Beat Rate / Frequency	21,600 bph / 3 Hz
Lift Angle	53 degrees
Power Reserve	~50 hours
Hand-Windable?	Yes
Anti-Shock Device	Kif (Elastor)
Functions	Central hours; central minutes; central seconds
Hacking Seconds?	Yes
Finishing	Damaskeening (stripes), perlage
Contains Gold?	Yes (21K)
Country of Manufacture	Switzerland, Swiss made
Known Models	Audemars Piguet Royal Oak (various references) (Add your watch to the comments below…)

The Audemars Piguet caliber 2124 is an automatic movement. This movement was in production between circa 1982~1996 and has been discontinued.

Cal. 2124 was an evolution of the AP calibre 2123. It was produced from an ebauche made by LeCoultre & Cie. Next was the caliber 2125 with an indirect seconds hand. Eventually, these calibers evolved to the caliber 2224 (28,800 bph) and 2324.

2124 serves as a base movement with different variants depending on the configuration. For example:

• 2124-2810 – Pointer date at 3:00; pointer day of the week at 9:00
• 2124-2825 – Pointer date at 3:00; pointer day of the week at 9:00; moonphase indicator at 6:00

InterestingNote: 1983 documentation shared by Audemars Piguet shows a lift angle of 53 degrees and a runtime of ~50 hours; however, in 1997, tech sheets appear to have been updated to a lift angle of 48 degrees with a runtime of 48 hours.

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