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Omega Speedmaster Triple Calendar 3521.30.00 – Steel White Dial

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Details

The Speedmaster that does more in a lighter tone

This Speedmaster Triple Calendar carries the same familiar case shape and overall feel, but the matte white dial shifts the mood completely. The layout is the same, the information is the same, yet the watch feels brighter and more open on the wrist. At 39mm, it remains easy to wear and unmistakably Speedmaster.

Why this configuration matters

The triple calendar layout is what defines this reference. Day, date, and month are worked into the dial in a way that keeps everything balanced. On a matte white backdrop, the display feels clear and intentional rather than dense.

The white dial changes the energy. It brings contrast and sharpness while maintaining legibility. This reference sits comfortably between a standard chronograph and something more involved. Automatic movement fits the purpose. It was built to be worn often and used, not admired from a drawer.

What you need to know before wearing it

Condition is very good throughout. The case, bezel, and bracelet are all in very good shape with no noticeable major flaws. The dial and crystal are clean and well preserved. The movement is running properly and all functions operate as intended. The watch comes with its original card.

Why this watch still works

This is a Speedmaster for someone who wants added functionality without added noise. The matte white dial makes it versatile and easy to pair with anything.

It works as a daily chronograph, a more distinctive alternative to the standard Speedmaster, or a thoughtful piece from Omega’s 1990s lineup. Familiar in form, different in tone, and quietly compelling once it is on the wrist.

Every watch we offer has been authenticated and mechanically looked over to ensure immediate usability.

Bracelet extension, cutting, or sizing is available upon request through our professional in-house jewelers.

Key Specs

Reference: 3521.30.00

Model: Speedmaster Triple Calendar

Year: 1990s

Movement: Automatic

Case Size: 39mm

Bezel: Steel

Bracelet: Stainless steel Omega bracelet

Dial: White

Wrist Size: Fits approximately 5.75–6.5 inches

SKU: 428

History

The Speedmaster Reduced was introduced in the late 1980s as a more compact take on the classic Moonwatch. While the original Omega Speedmaster Professional measured around 42mm and used a hand-wound movement, the Reduced came in at roughly 39mm and featured an automatic caliber. For many buyers, especially those who liked the Speedmaster look but wanted something easier to wear daily, it filled a real gap in the lineup.


Most Speedmaster Reduced models used the automatic Caliber 1140 or 3220, which combined a base automatic movement with a chronograph module. This modular setup allowed Omega to offer self-winding convenience while keeping the familiar tri-register dial layout. The proportions feel slightly tighter than the Professional, with subdials sitting a bit closer to the center and a thicker case profile. On wrist, though, it wears balanced and versatile, especially for smaller wrists or anyone who finds the 42mm Moonwatch oversized.


Throughout the 1990s and early 2000s, Omega released a wide range of Reduced variations. Classic black dials were most common, but there were also reverse panda executions, racing dials, limited editions, and even colorful variants tied to specific markets. Many were produced during the pre-Co-Axial era at Omega SA, which gives them a distinctly transitional feel between vintage charm and modern build quality.


The Speedmaster Reduced was eventually discontinued in the late 2000s, but it has developed its own following. It is not simply a smaller Moonwatch; it represents a specific period in Omega’s history when the brand was broadening the Speedmaster family beyond its NASA association. For collectors, it offers an accessible entry into the Speedmaster world, with classic chronograph styling, everyday practicality, and a footprint that works in real life.

Omega Speedmaster Triple Calendar 3521.30.00 – Steel White Dial
Omega Speedmaster Triple Calendar 3521.30.00 – Steel White Dial Sale price$4,000.00 USD

What Our Clients Say About Us

Dan Young
4 months ago

I knew I was gonna like Danny, based on his name, but nothing could’ve prepared me for how great of an experience this was. He had the most beautiful 70s Seamaster Cosmic on his website and I was set to be married 2 days later - I arranged to buy it but before leaving we both realized it needed to be serviced. I panicked, because I was literally buying this for my wedding, and Danny being the legend he is, loaned me a nearly identical Seamaster to make sure I could get through the event Never have I had someone go so above and beyond for me, especially while purchasing one of the lesser priced items in their inventory. He serviced my watch and exchanged it with me after the wedding on a super fast turnaround timeline. I would sincerely recommend you visit this guy, you will not be disappointed Edit: adding a pic of the loaner (two tone) and the owner (crosshair)

Patrick Farella
5 months ago

Great service and shop. Danny and his team were incredibly accommodating, professional, and kind. Great selection of vintage watches. Their store is the hidden gem in the diamond district.

Zee06
2 months ago

This was my first real luxury watch purchase, a Rolex 15200 Date 34mm, I own Tissots and a Laco, but those are entry level luxury watches. I found Danny’s Vintage Watches online, and had great feedback both on Google, Chrono24 and the Reddit watch community. So decided to give him a shot as buying online can be a crap shoot. Ordered Monday night, was at my doorstep Friday morning. Despite the watch being over 30 years old, serial number says it’s from 91, the watch looked new. Didn’t come with box or papers, and was shipped in a plastic sleeve wrapped in bubble wrap. Danny was always available to answer questions. I’ll be buying from Danny again for the next purchase…saw a couple of Speedmasters on his site I liked….

Mohammed Islam
4 months ago

Can't recommend Danny's vintage watches enough!!! My first Omega ever and im in love have been wearing every day since I purchased it. Danny's shop is a must visit if you are in NYC looking for a watch!!!