Tracking down a genuine omega speedmaster professional 1970 usually starts with a late-night rabbit hole on a watch forum and ends with a deep appreciation for just how much "soul" a piece of steel can actually have. If you're looking at watches from this specific era, you're hitting a very cool sweet spot in history. It was a time when the dust from the 1969 moon landing hadn't even settled yet, and Omega was busy figuring out how to celebrate their new "Moonwatch" status while keeping up with the massive demand that came with it.
If you've ever handled a modern Speedy and then picked up a 1970 model, you'll know exactly what I mean when I say they feel like two different animals. Don't get me wrong, the new ones are engineering marvels, but there's something about the way the light hits a "step dial" or how the tritium markers have aged into a creamy yellow that you just can't replicate in a factory today.
The Magic of the Step Dial
The first thing anyone is going to notice about the omega speedmaster professional 1970—at least if they know what they're looking for—is that gorgeous step dial. For those who aren't deep into the weeds of vintage watch nerdery, a "step dial" refers to the slight drop or "step" between the main center part of the dial and the outer minute track. It adds this incredible depth to the watch face that modern, flat dials just don't have.
By the early 70s, Omega was starting to phase these out to simplify production, but the 1970 references (typically the 145.022-69 or the very early -71) still usually carry this feature. When you look at it from an angle, that little ridge catches the light and gives the watch a three-dimensional character. It's a small detail, sure, but it's one of those things that, once you see it, you can't un-see it. It makes the dial look much more like an instrument and less like a printed piece of metal.
That Famous Straight Writing Caseback
One of the coolest things about a Speedmaster from 1970 is the caseback. This was a transitional period for the branding. Before the moon landing, the casebacks were pretty simple, usually just featuring the Seahorse logo. But after NASA made them famous, Omega wanted to shout about it.
In 1970, you'll often find what collectors call the "Straight Writing" caseback. Instead of the circular text we see today, it has "The First Watch Worn On The Moon" engraved in straight lines across the center. It's rare, it's quirky, and it screams 1970s. It represents that exact moment when Omega realized they weren't just making a tool for race car drivers anymore—they were making a piece of space history. If you find one of these with the engraving still crisp and not polished into oblivion by a previous owner, you've found something special.
The Shift to the Caliber 861
By 1970, the transition from the legendary Caliber 321 movement to the Caliber 861 was fully cemented. Now, there's always a big debate in the watch community about this. Some purists will tell you that the 321 is the "holy grail" because it's the one that actually went to the moon. But honestly? The 861 inside the omega speedmaster professional 1970 is an absolute tank of a movement.
It was designed to be easier to service and more accurate over the long haul. It vibrates at a higher frequency than its predecessor, which technically makes it a better timekeeper. From a practical standpoint, if you actually plan on wearing your vintage watch and not just keeping it in a safe, the 861 is a dream. It's reliable, parts are still relatively easy to find for any decent watchmaker, and it has that distinct, satisfying "click" when you wind it every morning. There's something meditative about that daily ritual—sitting down with a cup of coffee and giving the crown a few turns to bring the watch back to life.
Patina and the Tritium Glow (or Lack Thereof)
We have to talk about the lume. Back in 1970, Omega was still using tritium for the hour markers and hands. Unlike the modern Super-LumiNova that stays white and glows forever, tritium is radioactive (don't worry, it's a tiny amount) and it degrades over time.
The result? That beautiful, toasted-marshmallow patina. Every omega speedmaster professional 1970 has aged differently. Some have turned a light off-white, while others have gone full orange or dark pumpkin. Finding one where the hands match the dial markers perfectly is like winning the lottery.
Of course, the downside is that it doesn't glow anymore. If you wake up at 3:00 AM and try to check the time, you're out of luck. But most of us aren't exactly using these for professional diving or nighttime EVA missions anyway. We're wearing them because they look like a piece of history on the wrist, and that aged yellow look is exactly what gives a vintage Speedy its charm.
The Bracelet Dilemma
If you're lucky enough to find a 1970 Speedmaster with its original 1171 bracelet, hold onto it. These bracelets are legendary for being well, a bit jingly. They aren't the heavy, solid steel chunks you find on modern watches. They're light, they're a bit thin, and they rattle when you shake your wrist.
But man, are they comfortable. Because they're so light, you almost forget you're wearing the watch. The 1171 bracelet with its "flat-link" style (or the slightly later versions) fits the aesthetic of the 70s perfectly. If you find the original bracelet is too flimsy for your taste, these watches look incredible on a distressed leather strap or a grey NATO. The black dial and steel case are basically a blank canvas—it's almost impossible to find a strap that doesn't look good on a 1970 Speedy.
Why 1970 is the Sweet Spot for Collectors
So why buy an omega speedmaster professional 1970 instead of a brand new one or an older 60s model? For me, it's about the value and the "vibe." The 60s models with the 321 movement have skyrocketed in price over the last decade, often putting them out of reach for the average enthusiast.
The 1970 models offer almost all of those vintage "vibes"—the step dial, the acrylic Hesalite crystal, the tritium patina—but at a price point that is (usually) more approachable. You get a watch that was produced during the peak of the Apollo era, likely sold to someone who was watching the moon missions on a grainy color TV. It's a tangible connection to a very specific, optimistic time in human history.
What to Look Out For
Buying vintage is always a bit of a minefield, and the 1970 Speedmaster is no exception. Because these were tool watches, a lot of them were beaten to hell. You'll see watches with replaced hands, service dials that don't have the "step," or bezels that have been swapped out.
The bezel is a big one. In 1970, the "Dot Over Ninety" (DON) bezel was being replaced by the "Dot Next to Ninety" (DNN) bezel. If you find a 1970 model with a genuine DON bezel in good condition, you've hit a jackpot, as those bezels alone can sell for thousands of dollars now. But even a period-correct DNN bezel has its own charm. Just make sure the tachymeter scale hasn't been replaced with a modern service part if you're looking for total originality.
Final Thoughts on the 1970 Speedy
At the end of the day, owning an omega speedmaster professional 1970 isn't about having the most accurate watch in the world or the one with the most "specs." It's about the feeling you get when you strap it on. It's the weight of the history, the warmth of the acrylic crystal, and the fact that this machine has been ticking for over half a century.
Whether you're a space nerd, a history buff, or just someone who appreciates a damn good design, the 1970 Speedmaster is one of those rare things that actually lives up to the hype. It's not just a watch; it's a survivor from an era where we thought anything was possible. And every time you look down to check the time, you get a little reminder of that.