RARE FULL SET! Omega Speedmaster Triple Date | 39mm | 3520.50.00
 
The Omega Speedmaster 3520.50, often referred to as the “Triple Date” or “Day-Date,” is one of the most versatile and feature-packed variations of the legendary Speedmaster line. Combining classic Speedmaster design with added functionality, this reference delivers a chronograph, day, date, and month display all within a highly wearable 39mm case.
 
Powered by the Omega Caliber 1151 automatic movement (based on the Valjoux 7751), this model offers robust reliability along with a full calendar complication—making it a true enthusiast piece that blends utility with heritage. The black dial maintains the iconic Speedmaster aesthetic while incorporating additional subdials and calendar windows in a clean, balanced layout.
 
Ref# 3520.50.00
Case Diameter: 39mmCase Material: Stainless steelBezel: Black tachymeter bezelDial: Black dial with luminous markers, chronograph subdials, and full calendar (day, date, month)Crystal: Hesalite crystalCaseback: Solid stainless steelWater Resistance: 30 meters / 100 feetMovement: Omega Caliber 1151, automatic chronograph (Valjoux 7751 base)Power Reserve: Approximately 44 hoursBracelet: Omega stainless steel bracelet
 
INCLUDES:
✔ 2026 Outer Omega cardboard box
✔ 2026 Omega presentation watch box
✔ 2026 Omega travel case
✔ Factory warranty card
✔ Factory pictograms card
✔ Manual
 
CONDITION:
Excellent condition...and not just for its age; this watch stands out. The case remains in excellent shape consistent with meticulous ownership. Bezel and crystal are clear. Dial and hands are clean and present beautifully. The watch runs strong and keeps near perfect time.
 
DEAL WITH CONFIDENCE:
✔ Ships fully insured
✔ Prompt, professional communication
✔ All photos are of the actual watch in hand
 
With its classic Speedmaster DNA, added triple calendar functionality, this 3520.50 is a compelling piece for collectors seeking a unique, highly functional, and well-documented Speedmaster.