Extremely rare Audemars Piguet Royal Oak perpetual calendar in steel and yellow gold, ref. 25654SA.
This important reference replaced 25554 in 1987, remaining in production until 1998. Official sources state that of the 851 examples produced, only 72 are in steel and gold, an even rarer version of steel and gold!
Unofficial sources reduce the number of pieces with mother-of-pearl dials to only 6 in the world!
Auxiliary moon phase dial at 6 o'clock, date at 3 o'clock, day at 9 o'clock and month indicator at 12 o'clock.
Self-winding mechanical movement caliber 2120/2800.
In exceptional condition, comes with AP certificate of authenticity and one year of our working warranty.
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