Golden Ratio Refined — The Ellipse 3589 Jumbo in Royal Blue from 1974

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 3589, also known as the Jumbo Ellipse, elevates the design even further. Its deep blue sunburst dial exudes quiet luxury, while the ultra-slim 18k white gold case houses the legendary Caliber 28-255 with gold rotor — visible elegance powered by serious mechanical finesse.

The integrated 18k white 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.

- wrist size in our picture is 18cm circumference -

DIAL:

• original Patek Philippe blue sunburst service dial in flawless condition 
• original hands and crown
  

BRACELET & CLASP:

• original Patek Philippe 18k integrated white gold strap fitting up to 17.5 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 white gold buckle

CASE:

• excellent overall condition, showing very minor traces of use
• 3- body 18k white gold case with snap-on caseback
• 33 mm (without crown) / 35.5 mm (lug-to-lug) / 20 mm (between lugs) / 5.5 mm thick
• reference: 3589/1
• year: 1974
• total weight: 90 g

MOVEMENT:

• Patek Philippe Cal. 28-255 - automatic
• 40 jewels, 19800 A/h, 38 hours power reserve
• features a yellow gold rotor
  
• professionally serviced 02/2026
• -5 sec/d / 260°

BOX & PAPERS:

• GOLDAMMER certificate of authenticity & service documentation card
• original Patek Philippe box

GOLDAMMER REFERENCE: #1438