Omega Speedmaster Day-Date Triple Calendar 39mm | Blue Dial | Ref. 3523.80

The Omega Speedmaster Ref. 3523.80 combines the classic Speedmaster chronograph design with a practical triple-calendar complication. It features a 39mm stainless steel case, blue dial, steel tachymeter bezel, sapphire crystal, and stainless steel bracelet.

The dial includes day and month windows at 12 o’clock, a pointer date around the outer track, three chronograph registers, and a 24-hour indication. Despite its functionality, the layout remains balanced and distinctive.

Condition

Please review the photos carefully for an accurate representation. Light scratches, bracelet wear, bezel wear, crystal wear, or other signs of use consistent with age may be present.

Technical Data

• Reference: 3523.80 / 3523.80.00

• Model: Speedmaster Triple Date / Day-Date Chronograph

• Case Diameter: Approximately 39mm

• Case Material: Stainless Steel

• Bezel: Stainless Steel Tachymeter Bezel

• Dial: Blue Multi-Function Dial with Visible Staining

• Crystal: Sapphire Crystal

• Water Resistance: Originally rated to 50 meters; water resistance not guaranteed due to age

• Bracelet: Stainless Steel Bracelet

• Movement: Omega Calibre 1151 Automatic Chronograph

• Power Reserve: Approximately 42 Hours

• Functions: Hours, Minutes, Small Seconds, Chronograph, Day, Date, Month, 24-Hour Indicator and Tachymeter