The Patek Philippe Nautilus Ref. 3900 encapsulates the spirit of the iconic Nautilus line in a refined, mid-size format. Introduced in the early 1980s, this reference delivers the same distinctive porthole design and sporty elegance of its larger siblings, all while offering a slimmer, more understated wrist presence. For collectors and enthusiasts who value classic proportions and timeless design, the 3900 is a hidden gem.

Signature of the Nautilus is the rounded octagonal bezel with the protruding ears and horizontally ribbed dial. Powered by the ultra-thin Quartz Caliber 23 SC, it delivers exceptional precision while maintaining a slim profile. The integrated stainless steel bracelet ensures a seamless, comfortable fit on the wrist.

The best part of this particular piece that comes with the original Patek Philippe certificate from the first purchase in Lugano Switzerland from 2nd October 1989.

- wrist size in our picture is 18cm circumference -

CASE:

• great overall condition, showing very minor traces of used
• monobloc case in stainless steel withe screwed-on bezel
• 32.5 mm (without crown) / 35 mm (lug-to-lug) / 20 mm (between lugs) / 6.5 mm thick
• year: 1989
• reference: 3900 / 001
  
• total weight: 75 g

MOVEMENT:

• Patek Philippe Quartz Cal. E23SC 
  
• professionally serviced 03/2025
  

DIAL:

• original never touched ribbed anthracite blueish Nautilus sigma dial in flawless condition 
• original hands and crown
  
• original and evenly aged lume on hands and dial

BRACELET & CLASP:

• original Patek Philippe stainless steel bracelet is fitting up to 18.5 cm wrist size / 3 mm thick
  
• original Patek Philippe stainless steel buckle

BOX & PAPERS:

• comes with original Patek Philippe certificate from first purchase 2nd October 1989 in Lugano Switzerland
• comes with first purchase invoice showing 4.600 CHF
  

GOLDAMMER REFERENCE: #955