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Omega Speedmaster - Triple Calender

Details

Here’s an Omega Speedmaster Automatic Triple Calendar reference 3523.80 with a blue sunburst dial from early 2000's. Comes with its original card. Keeps great time and is fully functional.

Measurements include a 39mm case size and 18mm lug width. It’s on its original Omega stamped bracelet that fits up to a 7 inch wrist.

Functions include the time, chronograph, date, day, month, and 24-hour time. The red central date pointer tracks the outer calendar scale, while the day and month indicators are positioned at 12 o’clock. The blue sunburst dial adds depth and vibrancy, complemented by the sub-dials for running seconds, 30-minute counter, 12-hour counter, and 24-hour indication.

The watch features a steel case, bezel, and caseback with a mix of brushed and polished finishing.

All parts are original including the signed Omega crown, caseback, dial, and movement. Both the dial and case are in great cosmetic, untouched condition.

Key Specs

Reference: 3521.80

Model: Speedmaster Triple Calendar

Year: 1990s

Movement: Automatic

Case Size: 39mm

Bezel: Stainless

Bracelet: Stainless Steel

Dial: Blue Sunburst

Wrist Size: 6.35-7.1

Metal: Stainless Steel

SKU: 156

History

In 1957, Omega released the Speedmaster as a racing chronograph. Eight years later, NASA put it through a battery of extreme tests — temperature, humidity, vacuum, shock, vibration, acceleration — and in 1965 certified it as the official watch for all manned space missions.

On July 20, 1969, Buzz Aldrin wore his Speedmaster on the surface of the Moon. No other watch has been to the Moon. That fact has never stopped mattering to anyone who cares about watches.

The Speedmaster's production history across our inventory is rich: the manual-wind Professional (ref 145.022 from 1969 itself), the Reduced automatic (3510.5, 3511.5, 3511.8 with date), the Triple Calendar series (3521, 3523.3), the Michael Schumacher limited editions (3810.12, 3518.5), and the AC Milan and Schumacher World Champion 2000 editions. Each variant was built on the same essential chassis — the 39mm steel case, the tachymeter bezel — and each one lands somewhere on the continuum between racing instrument and artifact of human achievement.