Case #547 — Omega Speedmaster Triple Date Ref. 3520.50.00

Case #547 — Omega Speedmaster Triple Date Ref. 3520.50.00

Status: Active Investigation
Condition: Very Good Pre-Owned
Scope: Box, Papers, and Cards
Year: Early 2000s

🔎 Case Notes

The Omega Speedmaster Triple Date Ref. 3520.50.00 offers an unusually rich combination of functions in a compact and highly wearable Speedmaster format. Its black dial incorporates a chronograph, day and month apertures, pointer date, small seconds, 24-hour indication, and tachymeter scale without losing the distinctive sporting character of the Speedmaster family.

At 39mm, this reference wears more compactly than the traditional Moonwatch while delivering considerably more calendar information. The steel case and bracelet give it the familiar Speedmaster profile, while the densely arranged dial rewards closer inspection and gives the watch a distinctly technical character.

This early-2000s example is presented in very good pre-owned condition and includes its box, papers, and cards. The bracelet is currently sized to fit approximately a 7.5-inch wrist. With its complete accompanying set, versatile proportions, and complication-rich layout, this is a particularly appealing example for an Omega collector.

🕰️ The Evidence

Reference: 3520.50.00
Model: Omega Speedmaster Day-Date / Triple Date
Case: Stainless Steel
Case Size: 39mm
Bezel: Fixed Tachymeter Bezel
Crystal: Scratch-Resistant Sapphire Crystal with Interior Anti-Reflective Treatment
Dial: Black
Movement: Omega Calibre 1151 Automatic
Power Reserve: Approximately 44 Hours
Functions: Chronograph, Day, Date, Month, 24-Hour Indication, Small Seconds, Hours, and Minutes
Bracelet: Stainless Steel
Bracelet Fit: Approximately 7.5-Inch Wrist
Water Resistance: 50 Meters
Year: Early 2000s
Accessories: Box, Papers, and Cards

Condition Notes: Very good pre-owned condition overall, with wear consistent with careful previous ownership.

Omega identifies the discontinued reference as a 39mm stainless-steel Speedmaster powered by the self-winding Calibre 1151, with a 44-hour power reserve, sapphire crystal, and 50 meters of water resistance.

⌚ Speedmaster Heritage

The 3520.50.00 belongs to the automatic, calendar-equipped branch of the Speedmaster family. Rather than replicating the manual-wind Moonwatch formula, it expands the Speedmaster into a compact everyday chronograph with a complete calendar display and practical automatic winding.

Its combination of a pointer date around the dial, day and month windows, chronograph registers, and 24-hour display gives the watch its familiar “Triple Date” identity. The result is one of the most functionally dense Speedmasters of its era, housed in proportions that remain comfortable for regular wear.

🌟 Collector Provenance

The Ref. 3520.50.00 appeals to collectors who want a Speedmaster that sits outside the standard Moonwatch path. Its 39mm case, automatic Calibre 1151, complete calendar display, and layered black dial make it recognizably Omega while giving it a personality all its own.

Complete examples from the early 2000s are particularly attractive because the original box, papers, and cards help preserve the history of the watch. Combined with its very good condition and generously sized bracelet, this example is ready for a collector seeking a distinctive and complication-rich Speedmaster.

🧾 From the Case File

Recovered as an early-2000s Omega Speedmaster Triple Date Ref. 3520.50.00. Presented in very good pre-owned condition with box, papers, and cards. Stainless-steel bracelet sized to fit approximately a 7.5-inch wrist.

🗝️ BST Verdict

Case #547 offers a great deal of Omega character in a compact package. Its automatic chronograph movement, triple-calendar functionality, complete accompanying set, and wearable 39mm proportions make this a particularly compelling collector-ready Speedmaster.

👉 Every case deserves a closer look.