Audemars Piguet Calendar Moonphase 18K

Audemars Piguet Calendar Moonphase 18K

Why We Love It 

This stunning piece, a Reference 25589-002 from the late 1980s, is a perfect example of Audemars Piguet's design savoir faire outside of the cherished Royal Oak.

The svelte 33mm 18K solid yellow gold case is incredibly understated for the era in which it was produced. Its stepped bezel and short straight lugs give the watch the appearance of a refined gentleman's piece from the 1930s or 40s, complimented expertly by the enamel dial with painted Roman hour indices and yellow gold pencil handset. 

The high-grade Calibre 2124 automatic movement drives the day, date and moonphase complications, all set via the winding crown at 3:00. The entire effect is a watch that is not only beautiful but also easy to use and set.

Complicated watches such as this one - particularly ones finished in precious metals and packing a lot of horological heat for its size - are passed over by most collectors today, but those in the know will recognize that the craftsmanship and materials are way beyond their current market value, and will snatch them up in advance of an inevitable style turn in their direction!

The Audemars Piguet Story

There are certain watches that define a brand, informing its design ethos and becoming nothing short of iconic in the minds of collectors.

For Audemars Piguet, that watch is the Royal Oak—in all its multitudinous incarnations. Yet the manufacture from Le Brassus did not earn its seat in the triumvirate of leading watch brands—the so-called Big Three—on the success of the Royal Oak alone.

In fact, both Jules Audemars and Edward Piguet came from long lines of watchmakers, and made their reputations long before the Royal Oak was conceived. Their reputations rested on their ability to create incredibly elegant timepieces in numerous styles.

Though they may not have had catchy names like the Royal Oak, or boasted complicated movements like the present-day Jules Audemars collection, their vintage dress watches nevertheless captures the attention to detail that Audemars Piguet has come to be known for.


SKU: AS03812

18K Yellow gold case is approximately 33mm (excluding the crown). Calibre 2121 automatic-winding calendar movement by Audemars Piguet. Audemars Piguet Reference BA 25589/002.

Overall Condition: The case is in fantastic condition overall showing light wear consistent with age and use. Non-luminous white enamel dial is in excellent condition with with non-luminous handset. Unsigned crown.

Includes signed red crocodile leather strap with signed 18K pin buckle.

More pieces you may enjoy

Rolex Pearlmaster 34
Ref. M81319 Circa 2010s
$ 30,120.00
Rolex GMT-Master II 'Swiss Only'
Ref. 16710 Circa 1997 With Hangtag And Papers
$ 18,900.00
Rolex Milgauss
Ref. 116400V Circa 2014
$ 6,750.00
Tudor Glamour Double-Date
Ref. M57000-0037
$ 2,550.00


Thank you for your interest in the Tudor Oysterdate Big Rose. Please fill out the form below and we will get back to you shortly.


Our Pledge

Analog/Shift stands behind the authenticity of our products in perpetuity.


We back each Analog/Shift vintage timepiece with a one-year mechanical warranty from the date of purchase.


All of our watches include complementary insured shipping within the 50 states. We are happy to hand deliver your purchase in Manhattan or you may pick it up at our showroom.

International Buyers

Please contact us prior to purchase for additional details on shipping and payment options