Calibres 2130, 2131, 2150 and 2151
1986. Bridge-side view of Calibre 2131. 23.30 mm in diameter (10½ lignes), 3.2 mm thick. Hours ,minutes centre seconds, date, selfwinding. 19 jewels. Movement 33062 produed in 1898. Audemars Piguet Heritage.
1986. Dial-side view of Calibre 2131. 23.30mm in diameter (10½ lignes), 3.2 mm thick. Hours, minutes, centre seconds, date, selfwinding. 19 jewels. Movement 330062 produced in 1989. Audemars Piguet heritage.
1986. Bamboo wristwatch Model 14485. 1986-1987 catalogue. Audemars Piguet Archives.
1988. Royal Oak 14486TR. . Date. «dacron vertical tantale» dial. Calibre 2130, 35 mm Case C41993. Tantalum and 18-carat pink gold. Prototype without movement probably presented at the launch of the model in 1988. Audemars Piguet Heritage, inv. 1675.
1988. Calibre 2130. 1988-89 et 1990-91 Audemars Piguet Catalogues. Audemars Piguet Archives.
1988. Calibre 2131. 1988-89 and 1990-91 catalogues. Audemars Piguet Archives.
1993. Calibre 2150. 1993-94 catalogue. Audemars Piguet Archives.
1993. Calibre 2151. 1993-94 catalogue. Audemars Piguet Archives.
1990. Royal Oak Models 14470 and 56271. Model 14470 was successively equipped with Calibres 2130 and 2150, and when equipped with quartz Calibre 2610, it was sometimes renamed 56271. 1990-91 and 1993-94 catalogue. Audemars Piguet Archives.
Mechanism
Selfwinding
Functions
Hours, minutes, seconds (optional), date
Diameter
2130 and 2150: 20.4 mm (9 lignes); 2131 and 2151, 32,3mm (10½ lignes)
Thickness
3,20 mm
Frequency
21,600 vph (3 Hz)
Power Reserve
approx. 38 h
Jewels
19
Dates
1986 (2130-2131), 1991 (2150-2151)
Movement Blank
Frédéric Piguet (known under references 950, 951, 9501, 9511)
Introduced in 1986, Calibre 2130 belongs to the category of small selfwinding calibres. Its dimensions (20.4 mm - 9 lignes in diameter and 3.2 mm thick) make it suitable for ladies' watches. It was notably used in the Royal Oak 30 mm Models 14470 (1986), 14587 (1988) or later 14922 (1997). Nevertheless, from the year of its launch, it appeared in Model 14486, whose 35 mm diameter was then intended for male wrists. It is even found in some 36 mm variations of Models 4332 and 14700!
In the 1980s-1990s, it was not uncommon for a single Royal Oak model to contain several different calibres belonging to the same family. Thus, for example, according to the Production Registers, the Royal Oak 14486 housed at least four different calibres: 2130, 2131, and 2150 and 2151. The watchmakers drew on the available stock of movements and made the necessary adjustments. They could even go so far as to modify the functions of the watch. For example, when fitted into the so-called "bamboo" Model 14485, Calibre 2130 has no centre seconds, whereas it offers this function on Royal Oak Model 14486.
The 2131 variant differs from the 2130 in that it has a larger diameter (23.3 mm - 10½ lignes), made possible by the addition of a casing ring. This addition enables a larger date disc, thus maintaining a pleasingly balanced position of the date window in the larger-diameter (35 and 36 mm) watch.
Developed from 1988-89 and sold from 1991 onwards, the 2150 and 2151 variants improved the reliability of the mechanism, notably by adding a fast date corrector a fine adjustment. The Royal Oak 14470 was thus for example initially equipped with Calibre 2130, which was in turn gradually replaced by Calibre 2150. It should be noted that this model also welcomed quartz Calibre 2610.
Royal Oak models equipped with Calibres 2130, 2131 and 2150 : Models 14486 (1986); 14470 (1986); 14567 (1987); 14575 (1987); 14544 (1987); 14587 (1988); 14674 (1989); 14708 (1992); 14845 (1993); 14847 (1993); 14673 (1994); 14846 (1994); 14913 (1994); 14949 (1995); 14950 (1995); 79313 (1995); 79320 (1995); and 14922 (1997).
Sales of Royal Oak watches fitted with Calibre 2130: a total of 1,440 units, of which 104 (1986); 449 (1987); 433 (1988); 211 (1989); 231 (1990); 10 (1991); 1 (1992); and 1 (1994).
Sales of Royal Oak watches fitted with Calibre 2131 a total 1,221 units, of which 72 (1986); 109 (1987); 11 (1988); 464 (1989); 413 (1990); 136 (1991); and 16 (1992).
Sales of Royal Oak watches fitted with Calibre 2150: a total of 2,692 units, of which 242 (1991); 387 (1992); 312 (1993); 505 (1994); 632 (1995); 282 (1996); 177 (1997); 109 (1998); 39 (1999); 1 (2000); 1 (2001); 1 (2003); 2 (2004) and 2 (2005).
Sales of Royal Oak watches fitted with Calibre 2151: a total of 73 units, of which 2 (1991); 34 (1992) and 37 (1993).
Introduced in 1986, Calibre 2130 belongs to the category of small selfwinding calibres. Its dimensions (20.4 mm - 9 lignes in diameter and 3.2 mm thick) make it suitable for ladies' watches. It was notably used in the Royal Oak 30 mm Models 14470 (1986), 14587 (1988) or later 14922 (1997). Nevertheless, from the year of its launch, it appeared in Model 14486, whose 35 mm diameter was then intended for male wrists. It is even found in some 36 mm variations of Models 4332 and 14700!
In the 1980s-1990s, it was not uncommon for a single Royal Oak model to contain several different calibres belonging to the same family. Thus, for example, according to the Production Registers, the Royal Oak 14486 housed at least four different calibres: 2130, 2131, and 2150 and 2151. The watchmakers drew on the available stock of movements and made the necessary adjustments. They could even go so far as to modify the functions of the watch. For example, when fitted into the so-called "bamboo" Model 14485, Calibre 2130 has no centre seconds, whereas it offers this function on Royal Oak Model 14486.
The 2131 variant differs from the 2130 in that it has a larger diameter (23.3 mm - 10½ lignes), made possible by the addition of a casing ring. This addition enables a larger date disc, thus maintaining a pleasingly balanced position of the date window in the larger-diameter (35 and 36 mm) watch.
Developed from 1988-89 and sold from 1991 onwards, the 2150 and 2151 variants improved the reliability of the mechanism, notably by adding a fast date corrector a fine adjustment. The Royal Oak 14470 was thus for example initially equipped with Calibre 2130, which was in turn gradually replaced by Calibre 2150. It should be noted that this model also welcomed quartz Calibre 2610.
Royal Oak models equipped with Calibres 2130, 2131 and 2150 : Models 14486 (1986); 14470 (1986); 14567 (1987); 14575 (1987); 14544 (1987); 14587 (1988); 14674 (1989); 14708 (1992); 14845 (1993); 14847 (1993); 14673 (1994); 14846 (1994); 14913 (1994); 14949 (1995); 14950 (1995); 79313 (1995); 79320 (1995); and 14922 (1997).
Sales of Royal Oak watches fitted with Calibre 2130: a total of 1,440 units, of which 104 (1986); 449 (1987); 433 (1988); 211 (1989); 231 (1990); 10 (1991); 1 (1992); and 1 (1994).
Sales of Royal Oak watches fitted with Calibre 2131 a total 1,221 units, of which 72 (1986); 109 (1987); 11 (1988); 464 (1989); 413 (1990); 136 (1991); and 16 (1992).
Sales of Royal Oak watches fitted with Calibre 2150: a total of 2,692 units, of which 242 (1991); 387 (1992); 312 (1993); 505 (1994); 632 (1995); 282 (1996); 177 (1997); 109 (1998); 39 (1999); 1 (2000); 1 (2001); 1 (2003); 2 (2004) and 2 (2005).
Sales of Royal Oak watches fitted with Calibre 2151: a total of 73 units, of which 2 (1991); 34 (1992) and 37 (1993).
