Audemars Piguet Octagon Automatic Date – 18k Yellow Gold – 1970s
Sculptural elegance meets mechanical finesse.
This 1970s Audemars Piguet dress watch stands out with its rare stepped decagonal case, crafted entirely in 18k yellow gold. The interplay of geometry and texture continues with the oval golden dial, featuring a subtle shimmering finish that catches the light with every movement.
Inside, the ultra-thin Caliber 2121/1 — developed in collaboration with Jaeger-LeCoultre — offers both mechanical prestige and slender comfort on the wrist. The movement is the same esteemed caliber used in the early Royal Oak models.
Completing the piece is an integrated 18k yellow gold braided bracelet, fluid and architectural, making this watch as much a piece of jewelry as a precision instrument.
With its sculptural form, rare case architecture, and storied movement, this AP is a refined yet bold statement for collectors and connoisseurs alike.
- wrist size in our picture is 18cm circumference -
DIAL:
- original never touched golden glittering dial in flawless condition
- original hands & crown
BRACELET & CLASP:
- 18k yellow gold AP bracelet is fitting up to a 19 cm and is slightly adjustable at the clasp (around 1 cm) / 1.5 mm thick
- 18k yellow gold AP clasp
CASE:
- excellent overall condition, showing minor traces of use
- 3- body 18k yellow gold Decagon stepped case with snap-on case back from casemaker C.R. Spillmann & Co. SA
- 33 mm (without crown) / 39 mm (lug-to-lug) / 19 mm (between lugs) / 6.7 mm thick
- Year: 1970s
- total weight: 91 g
MOVEMENT:
- Audemars Piguet Cal. K 2121/1 - automatic
- 36 jewels, 21600 A/h, 40 hours power reserve
- professionally serviced 08/2025
- +12 sec/d / 260°
BOX & PAPERS:
-
GOLDAMMER certificate of authenticity & service documentation card
- original Audemars Piguet box and leather pouch
GOLDAMMER REFERENCE: #1084