SKU: 30085577376

Omega Speedmaster Professional Pre-Moon DON Bezel Caliber 321 Ref. 105.012-66 CB Case from 1966

Sale price$3870.00 Regular price$4300.00
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Description

Omega Speedmaster Professional Pre-Moon DON Bezel Caliber 321 Ref. 105.012-66 CB Case from 1966Omega Speedmaster Professional Pre Moon Ref. 105. 012 66 DON Bezel Caliber 321 Iconic 1966 Moonwatch Heritage We are proud to present this outstanding example of horological historythe Omega Speedmaster Professional Ref. 105. 012 66, featuring the revered Caliber 321 and original "Dot Over Ninety" (DON) bezel. As the reference worn by astronauts during NASAs Apollo missions, this Pre Moon Speedmaster is one of the most historically significant

Omega Speedmaster Professional Pre-Moon – Ref. 105.012-66 – DON Bezel – Caliber 321 – Iconic 1966 Moonwatch Heritage

We are proud to present this outstanding example of horological history—the Omega Speedmaster Professional Ref. 105.012-66, featuring the revered Caliber 321 and original "Dot Over Ninety" (DON) bezel. As the reference worn by astronauts during NASA’s Apollo missions, this Pre-Moon Speedmaster is one of the most historically significant chronographs ever produced.

A True Collector’s Omega – Pre-Moon, Pre-Legend

This reference 105.012-66 is a cornerstone of the Speedmaster lineage. Produced in 1966, it features the larger 42mm asymmetrical case, twisted lyre lugs, and the original “Professional” dial layout introduced for astronauts. It is powered by the legendary manually wound Caliber 321, the same column-wheel chronograph movement used in the Moon-landing Speedmasters.

This is the exact reference worn on the wrists of astronauts such as Buzz Aldrin during Apollo 11. Its design and components are iconic—the stepped matte black dial, warm aged tritium lume, and the elusive DON bezel all reflect the golden age of Omega tool-watch craftsmanship.

Condition & Features

Dial: Original matte stepped dial in deep black, untouched with rich, creamy tritium hour markers and matching hands. “T SWISS MADE T” at 6 o’clock confirming tritium usage. This is a textbook example of Omega's 1960s professional chronograph dials.

Case: 42mm stainless steel asymmetric “lyre” lug case, correct for this reference. This example is particularly rare as it was manufactured by La Centrale Boîtes (CB), one of Omega’s contracted case makers alongside Huguenin Frères. Cases produced by CB are estimated to make up two-thirds of all 105.012-66 production, and are identifiable by their flatter lug profile and more subtle transition step on the lug bevel—making them highly sought-after among collectors.

Bezel: Rare original "Dot Over Ninety" (DON) tachymeter bezel in excellent vintage condition—highly sought after by collectors for its pre-moon configuration and historical accuracy.

Crystal: Omega signed hesalite plexiglass with embedded Omega logo.

Movement: Omega Caliber 321 manual-wind chronograph, just serviced by a master watchmaker. A movement celebrated for its complexity, precision, and history—column wheel controlled and rhodium-plated. Running smoothly and offered with a 12-month mechanical warranty.

Crown: Correct original Omega crown.

Strap: Hand-crafted premium leather strap made in Belgium, custom-fitted and true to the Speedmaster’s rugged elegance.

Buckle: Omega stainless steel buckle, period correct.

Reference: 105.012-66
Serial Number: In correct range for 1966 case production

Why Collect This Watch?

This 1966 Omega Speedmaster Professional 105.012-66 is more than a watch—it’s a piece of lunar-era history. With its Cal. 321 movement, original DON bezel, stepped tritium dial, and rare CB-case lyre lugs, it offers authenticity, rarity, and narrative in equal measure.

Whether you’re a seasoned Speedmaster enthusiast or a new collector seeking one of the most respected tool watches in horology, this is a blue-chip investment. It captures the essence of Omega’s commitment to exploration and endurance, before the Moon missions made the Speedmaster an icon.

A real collector’s treasure—powerful, storied, and visually arresting.

Please don’t hesitate to inquire for additional details or to secure this exceptional Speedmaster.

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Exchange/Return Notes
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SKU: 30085577376

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4.6 ★★★★★
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Cliff
San Leandro, US
★★★★★ 3
Beware of the Brown Crazy Horse version.
NOTE: This review is COLOR SPECIFIC and concerns the Brown Crazy Horse version of this shoe. I am a loyal Florsheim customer having purchased Florsheim Imperials in years past. They are a fine shoe. However, I have to admit complete frustration with the Florsheim Berkley Flex Penny Loafer in "Brown Crazy Horse." The photos in the listing show a shoe with gloss...a shine. The photos on the box show a shoe with shine. Don't believe the photos. "Brown Crazy Horse" is, at best a dull matte finished leather. If you want a classic penny loafer with the classic Florsheim look this is NOT the color to choose. When the shoes arrived and the shoes did not match the photo on the box, I ignorantly assumed it was merely a case of the wrong shoes in the box so I exchanged them for another pair, which was a big mistake. It is Florsheim's incorrect photo and box label that caused me the inconvenience of going through two pair and then having to return both. I would assume other colors are as pictured in their listings because I cannot imagine that every Florsheim Berkley Flex Penny Loafer is a dull matte finish. I'm sorry that I do not have photos of the dull finished shoes. You'll have to take my word for it. They are a matte finish at best.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
D
Verified Purchase
Dean
Bozeman, US
★★★★★ 5
Just right, great quality and value (in the price)
Size: 11.5 X-Wide, Color: Burgundy
Exactly what I'd expect from a Florsheim. I'm delighted. Folks, let me share one mistake I made on my way to a good fitting pair of shoes. I ordered some in my size (I have a big foot, especially in width). I ordered what I thought I needed and it came in wide enough, but too short (the short was the surprise), but we all are told: "Manufacturers vary in their sizes not only from each other but from shoe model to shoe model." I want you to know I believe in that when it applies to clothes, especially children's and womens fashions in my life's experiences, but NOT with shoes, especially main-brand-deluxe. I ordered the next half-size up and now I have too large, how can that be? I found out when I pulled the paper stuffing out, in particular the LAST glob that extends from the middle to the toe, that it WASN'T the last glob, there was indeed a rather small glob still way down in the toe, almost pointless for this minor bit of stuffing being separate from the other, but it was. I had already innocently troubled Amazon with returns of shoes that would have fit, so I'll keep the half-size too large as a life lesson. I ordered this pair in the size I believed I was all along and viola, a good fit. What changed? When that last toe piece of paper wadding that's hard to see and even harder with a big hand to reach, the shoe fit perfectly. That's a lot of trouble because of a small piece of paper that was hard to see, but that's why I write this review for you so that you can make sure all the paper is really out when you already think it is. Amazon has been good enough not to hold me accountable and in return I'll not only repeat buy, I tell you of my experience.
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Reviewed in the United States on December 3, 2014
D
Verified Purchase
Doc
Alexandria, US
★★★★★ 5
Great price great shoe
Size: 12, Color: Burgundy Polished Full Grain
Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.
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Reviewed in the United States on May 23, 2026
R
Verified Purchase
roger mendes
West Palm Beach, US
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
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Reviewed in the United States on March 21, 2026
F
Verified Purchase
Fabric Crazy
Belleville, US
★★★★★ 5
Really nice shoes
Size: 9, Color: Black Polished Full Grain
My husband enjoys wearing these shoes. Very classy looking. They fit well. They arrived quickly. He liked them so much he ordered another pair in a different color which have worked out just as well.
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Reviewed in the United States on February 3, 2026

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