====== AP 2510 ======
Calibre 2510 was one of the first-generation [[quartz]] movements produced by [[Audemars Piguet]].

Introduced in late [[1974]] or early [[1975]], Cal. 2510 was used in a unusual rounded rectangular model, matching the shape of the movement. It includes a date complication designed for a window at 6 00.

Cal. 2510 was produced in the initial heyday of quartz movements, when the accuracy of this new technology was highlighted. Therefore, it has a highly unusual adjustment mechanism An inset pusher at 4 00 advances the seconds hand one second per press, corresponding to the monthly deviation expected. If it is held in, the movement is stopped, enabling correction backward. The crown adjusts only the hour hand and date in second position, leaving the timekeeping and minute hand running, intended for use when traveling. Third position allows the time to be corrected as usual.

The similar [[AP 2511|Cal. 2511]] is round, lacks the date complication, and has only two crown positions, using an inset pusher in the crown to adjust the seconds. It followed in [[1977]].


<WRAP ud ud_mov>

**Manufacturer:**
  * [[Audemars Piguet]]

**Description:**
  * First-generation [[quartz movement]] with date

**Functions:**
  * Central hour, minute, and seconds hands
  * Date window at 6 00
  * Hour hand and date adjustment using the crown in first position
  * One-second corrector pusher at 4 00

**Data:**
  * 2,359,296 Hz
  * 31.0 x 25.6 x 6.0 mm
  * 15 months battery life
  * Accurate to +/- 1 second per month

**Production period:**
  * [[1974]]-?
</WRAP>

{{tag>Movements Quartz_movements Audemars_Piguet_calibres}}