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Omega Speedmaster MK40 - Triple Calendar

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Details

Here's an Omega MK40 Speedmaster Reference 3520.53 triple calendar chronograph automatic from the 1990s. Keeps great time and is fully functional. Comes with its original Omega signed bracelet that fits up to a 7 inch wrist. Measurements include a 39mm case size and 18mm lug width. Functions include time, date, day, month, and a chronograph feature. Ref: 3520.53. Stainless steel case and caseback. A lot of use of playful colors on the dial. Red chrono second hand. The Arabic numerals developed a slight patina. The lume in both the hands and the hour markers is intact. Yellow "plane" hand for the date function. All parts are original, including the signed crown, signed caseback, dial, and movement. Both the dial and case are in great cosmetic, untouched condition.


Ready to wear!

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 MK40 - Triple Calendar
Omega Speedmaster MK40 - Triple Calendar Sale price$5,000.00 USD

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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!!!