Omega Speedmaster Day Date
Triple Calendar | Day-Date | Ref 3520.50
Basic Info
Listing code : R1K673
Brand : Omega
Model : Speedmaster Day Date
Reference number : 3520.50.00
Movement : Automatic
Case material : Steel
Bracelet material : Steel
Year of production : Unknown
Condition : Used (Good)
Scope of delivery : No original box, no original papers
Gender : Men's watch/Unisex
Location : United States of America, New York, New York
Price : 2,495 [Negotiable
Availability : Item is in stock
Caliber
Movement : Automatic
Caliber/movement : 1151
Base caliber : 1151B
Power reserve : 44 h
Number of jewels : 25
Case
Case material : Steel
Case diameter : 39 x 45 mm
Water resistance : 3 ATM
Bezel material : Steel
Crystal : Sapphire crystal
Dial : Black
Dial numerals : No numerals
Bracelet/strap
Bracelet material : Steel
Bracelet color : Steel
Clasp : Fold clasp
Clasp material : Steel
Functions
Chronograph, Date, Weekday, Month, Tachymeter
Other
More details : Small seconds, Luminous hands
Product safety : Show information
The Omega Speedmaster Ref. 3520.50 is a distinctive and highly functional variation within the iconic Speedmaster collection, often referred to by enthusiasts as the “Triple Calendar” or “Day-Date” Speedmaster. This model features a 39mm stainless steel case paired with a bold black dial, offering a sporty yet refined aesthetic. Unlike the traditional Moonwatch layout, the dial is more intricate, featuring day and month windows at 12 o’clock, a pointer date displayed along the outer track, and chronograph sub-dials, creating a dynamic and highly legible design.
Powered by the Omega Caliber 1151 automatic movement, based on the robust Valjoux 7751 architecture, the watch delivers reliable performance along with an impressive range of complications. In addition to the chronograph function, it features a full triple calendar (day, date, and month) as well as a 24-hour indicator, making it both practical and mechanically engaging. Finished with a tachymeter bezel and stainless steel bracelet, the Speedmaster 3520.50 offers a unique blend of technical capability and classic Speedmaster DNA in a versatile everyday format.
Condition
Please review the photos carefully for an accurate representation. Light scratches or signs of wear consistent with age and normal use may be present and do not affect the functionality of the watch.
Technical Data
Reference: 3520.50
Case diameter: 39 mm
Case: Stainless steel
Bezel: Fixed tachymeter bezel
Dial color: Black
Crystal: Sapphire crystal
Water resistance: 50 meters / 167 feet
Bracelet: Stainless steel bracelet
Movement: Omega Caliber 1151 automatic
Power reserve: Approximately 44 hours
Functions: Hours, minutes, seconds, chronograph, day, date, month, 24-hour indicator
