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Yes—watch owner and Fratello author Robert-Jan Broer said he would buy the steel Omega Speedmaster Calibre 321 again after a year. His answer is personal, not a universal verdict: he values the movement, dial and case details, and bracelet, while considering the 3861 Moonwatch the better-value first Speedmaster. A 2026 update says he would still choose the 321 if his budget allowed, but also records practical drawbacks, including the bracelet’s lack of micro-adjustment.
What watch is this assessment about?
Broer’s one-year assessment concerns the steel Speedmaster Calibre 321, reference 311.30.40.30.01.001. Omega describes its 39.7 mm case as drawing on the third-generation Speedmaster worn during America’s first spacewalk in 1965. The watch has a black step dial, polished black ceramic bezel ring with a white enamel tachymeter scale, sapphire crystal and display back. Its functions include a chronograph and small seconds. Omega’s Hong Kong product page lists these specifications.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
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Omega Speedmaster Chronograph Hand Wind Black Dial Men's Watch 310.32.42.50.01.001 | $7,349.99 | Buy on Amazon |
| 2 |
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Omega Speedmaster 38 Chronograph Men's Watch 324.30.38.50.01.001 | $5,790.00 | Buy on Amazon |
| 3 |
|
Omega | $7,600.00 | Buy on Amazon |
| 4 |
![Omega Speedmaster Moon Watch Professional Co-Axial Master Chronometer Chronograph 310.30.42.50.01.001 (W221317) [Parallel Import], Bracelet Type](https://m.media-amazon.com/images/I/413XHnz+VDL._SL160_.jpg)
|
Omega Speedmaster Moon Watch Professional Co-Axial Master Chronometer Chronograph... | $7,500.00 | Buy on Amazon |
| Specification | Omega Hong Kong listing |
|---|---|
| Case diameter | 39.7 mm |
| Lug width | 19 mm |
| Lug-to-lug | 48.0 mm |
| Thickness | 13.7 mm |
| Approximate product weight | 128 g |
| Water resistance | 50 m / 5 bar |
| Power reserve | 55 hours |
| Movement | Manual-winding Omega 321 |
The dimensions, weight, water resistance and power reserve above are Omega’s Hong Kong product-page specifications, accessed in 2026; they are not a fit or performance guarantee. In particular, 50 m / 5 bar should not be read as an unqualified assurance that the watch is suitable for swimming or diving.
Why would he buy it again?
In his May 11, 2021 one-year ownership article, Broer answered the question directly: “In fact, I would.” He presents the movement and finishing as central to the premium, alongside the dial and case details and the watch’s significance in his collection. This is an owner’s assessment of what matters to him, not a claim that every buyer will see the same value.
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- Model 310.32.42.50.01.001
The movement and finishing are the point
The Calibre 321 is the feature Broer most clearly sets apart from the standard Professional Moonwatch. In his 2026 six-year update, he describes it as a column-wheel chronograph and notes that it has neither Master Chronometer nor COSC certification. Buyers who put certification first should weigh that against the appeal Broer finds in the movement itself.
A smaller, distinct case profile
At 39.7 mm, the straight-lug case is not simply the 42 mm Professional Moonwatch in different materials. Broer says the smaller dimensions suit his 19 cm wrist. That is useful context, but wrist shape and personal fit vary; his experience cannot predict how it will wear on someone else.
Rank #2
- Model 324.30.38.50.01.001
Modern materials for regular wear
Broer initially had reservations about the sapphire crystal and ceramic bezel, but came to appreciate them in a watch he wears often. That preference is subjective: someone seeking a more vintage-style material experience may judge the trade-off differently.
What are the ownership drawbacks?
The bracelet has no quick adjustment
Broer praises the flat-link bracelet’s comfort and finishing, but its clasp lacks quick adjustment. He says sizing changes are made in small increments; in his later update, he flags the missing micro-adjustment as a disadvantage for people whose wrists change more with temperature.
Rank #3
- Model 310.30.42.50.01.001
Magnetism incidents are one owner’s account
In the 2026 update, Broer recounts two occasions over six years when magnetism affected the watch’s accuracy. He says both were corrected under warranty. This is an anecdote about his watch, not evidence of a general defect or a failure rate for the model.
Is the 321 worth its premium over the 3861 Moonwatch?
Broer’s answer depends on whether this is your first Speedmaster. In 2021, he described the 3861 Professional Moonwatch as roughly half the price of the 321 in that article’s context and said he would choose the 3861 if starting without a Speedmaster. His later comparison advice was: “If you don’t see or feel the difference between these two models, do yourself the favor and go with the Professional.” That is his value judgment, not an Omega recommendation.
Rank #4
| Consideration | Calibre 321, ref. 311.30.40.30.01.001 | Speedmaster Professional Moonwatch, Calibre 3861 |
|---|---|---|
| Case design and size | 39.7 mm straight-lug case, per Omega’s Hong Kong specification | 42 mm Professional case, as described in Broer’s comparison |
| Movement and certification | Manual-winding Omega 321; Broer’s 2026 update says it lacks Master Chronometer and COSC certification | Certification details not stated in the cited ownership articles |
| Price evidence | Omega Hong Kong listed HKD121,500 in 2026; Broer reported €14,000/$14,100 in 2021 and €17,100 including VAT in 2026 | Broer characterized it as roughly half the 321’s price in his 2021 article; this is a dated comparison, not a current local quote |
| Best fit in Broer’s view | An additional, collection-topping choice for someone who values its movement and details | Stronger value as a first Speedmaster |
The prices are not directly comparable: they come from different publishers, dates and regional contexts. Omega’s HKD121,500 listing was regional and time-sensitive, and the page showed the watch unavailable online when accessed in 2026. It does not establish current stock or pricing elsewhere.
A vintage 105.003 is another alternative Broer mentions, but the cited articles do not establish its current market price or condition. Those need separate evaluation before treating it as a like-for-like recommendation.
Would the 321 make sense for you?
- Consider it if the Calibre 321, the smaller straight-lug case, and the detailing are the reasons you want this particular Speedmaster—and the premium fits your budget.
- Look closely at the 3861 first if you are buying your first Speedmaster and prioritize value over the 321’s particular movement and details.
- Try the bracelet on if possible if fine on-the-fly adjustment matters to you; the clasp’s lack of quick adjustment is a real ownership trade-off for Broer.
- Check strap fit carefully if changing from the bracelet: Omega lists 19 mm between the lugs, but lug width alone does not establish that a particular strap’s end shape and attachment will fit.
Broer’s price references are historical, not current universal quotes: his 2021 article stated €14,000/$14,100, while his 2026 update gave €17,100 including VAT. For a regional point of reference, Omega’s Hong Kong listing showed HKD121,500 when accessed in 2026, with online unavailability at that time. Neither source establishes today’s price or worldwide availability.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
