2015 Serviced, 2000 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.
This particular example benefits from a full Omega service completed in 2015, ensuring strong performance and peace of mind, while also retaining its original charm with included replaced components.
Ref# 3520.50.00
Case Diameter: 39mm
Case Material: Stainless steel
Bezel: Black tachymeter bezel (original included)
Dial: Black dial with luminous markers, chronograph subdials, and full calendar (day, date, month)
Crystal: Hesalite crystal
Caseback: Solid stainless steel
Water Resistance: 30 meters / 100 feet
Movement: Omega Caliber 1151, automatic chronograph (Valjoux 7751 base)
Power Reserve: Approximately 44 hours
Bracelet: Original Omega stainless steel bracelet + UNC aftermarket stainless bracelet
Additional Strap: Leather strap with Omega deployant clasp
INCLUDES:
✔ Original Omega stainless steel bracelet
✔ UNC aftermarket stainless bracelet
✔ Additional leather strap with Omega deployant clasp✔ Outer Omega cardboard box
✔ Omega presentation watch box
✔ Omega travel case✔ Original factory warranty card
✔ Original paperwork
✔ Omega service records (2015)
✔ Purchase receipt✔ Original bezel, crown, pushers, and watch hands (replaced during service)
CONDITION:
Excellent condition for its age. The case remains in outstanding shape with only very light wear consistent with careful ownership. Hesalite crystal shows faint marks that can be easily polished out if desired. Dial and hands are clean and present beautifully. The watch runs strong and keeps excellent time following its Omega service.
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, and extensive set of accessories—including original parts and service history—this 3520.50 is a compelling piece for collectors seeking a unique, highly functional, and well-documented Speedmaster.
