1998 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: 39mm
Case Material: Stainless steel
Bezel: Black tachymeter bezel
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: Omega stainless steel bracelet
INCLUDES:
✔ Outer Omega cardboard box
✔ Omega presentation watch box✔ Factory undated warranty card
✔ Factory pictograms card
✔ Manual
✔ Hang tag
CONDITION:
Outstanding condition for its age. The case remains in great shape with only very light wear consistent with careful ownership. Bezel has a small ding at the 9 o'clock marker. Hesalite crystal is clear. Dial and hands are clean and present beautifully. The watch runs strong and keeps excellent 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.
