Golden Ratio Refined — Square Ellipse by BEYER

A bold expression of mathematical elegance from Patek Philippe.

Originally launched in 1968, the Golden Ellipse broke convention by rejecting traditional round or square cases — instead embracing proportions derived from the golden ratio. The result? A timeless silhouette beloved by connoisseurs for its harmony, simplicity, and distinction.

This reference 3544, also known as one of the Jumbo Ellipses, elevates the design even further. Its deep blue sunburst dial exudes quiet luxury, while the ultra-slim 18k yellow gold case houses the legendary manual Caliber 23-300.

The integrated 18k yellow gold bracelet, flawlessly sculpted to match the case’s curve, delivers unparalleled comfort and coherence. A watch that’s equally suited for black-tie dinners and moments of quiet self-expression.

What truly sets this piece apart, though, is the double-signed dial — an exceptionally rare “BEYER” co-signature, a nod to its original retail by the prestigious Zurich watch house. Confirmed by the original box and certificate from first purchase in October 1973.

- wrist size in our picture is 18cm circumference -

DIAL:

• original never touched blue sunburst dial in flawless condition BEYER signed
• original hands and crown
  

BRACELET & CLASP:

• original Patek Philippe 18k integrated yellow gold strap fitting up to 20 cm wrist size / 2 mm thick
• bracelet is adjustable by around 1 cm at the clasp; for major adjustments a goldsmith is needed
  
• original Patek Philippe 18k yellow gold clasp

CASE:

• excellent overall condition, showing very almost no traces of use
• 3- body 18k yellow gold snap on case
• 33 mm (without crown) / 33 mm (lug-to-lug) / 22.5 mm (between lugs) / 6.5 mm thick
• reference: 3544
• Year: 1973
• total weight: 123g

MOVEMENT:

• Patek Philippe Cal. 23 - 300 - manual wound
  
• 18 jewels, 18000 A/h, 46 hours power reserve
  
• professional check up 04/2026
• -9 sec/d / 270°

BOX & PAPERS:

• original Patek Philippe booklet and certificate from first purchase October 1973 at jeweler BEYER in Zürich
• original Patek Philippe carton (damaged) and box (great condition)
• GOLDAMMER certificate of authenticity & service documentation card
  

GOLDAMMER REFERENCE: #1547