Omega Speedmaster Triple Calendar | Rare Black Arabic Dial | Ref. 3523.51

The Omega Speedmaster Ref. 3523.51 is a rare and distinctive Speedmaster Day-Date model, offering the classic Speedmaster chronograph layout with added triple-calendar functionality. This reference features a black Arabic dial with contrasting silver subdials, giving the watch a much more unique appearance compared to the more common Speedmaster Day-Date configurations.

Released as a limited-production model for the Japanese market, the 3523.51 is a standout neo-vintage Speedmaster for collectors who want something less commonly seen. Powered by Omega’s automatic Calibre 1151 chronograph movement, this watch offers day, date, month, 24-hour indication, chronograph, and tachymeter functions in a compact and wearable stainless steel case.

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 functionality. The watch presents well overall with expected wear for its age.

Technical Data

• Reference: 3523.51

• Model: Speedmaster Day-Date / Triple Calendar

• Case Material: Stainless Steel

• Case Diameter: Approximately 39mm

• Bezel: Tachymeter Bezel

• Dial: Rare Black Arabic Dial with Silver Subdials

• Crystal: Sapphire Crystal

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

• Bracelet: Stainless Steel Bracelet

• Movement: Omega Calibre 1151 Automatic Chronograph

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