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Buying Guide · The medallion caseback

Buying an ST 145.022-71

The last of the early calibre 861 Speedmasters carries the family’s one expensive word — “No-NASA.” What sellers are asking this autumn, what the record actually shows, and the one-line caseback test that settles the premium before you pay it.

The verdict

Buy the standard watch well; pay the No-NASA premium only when the ring is blank. The 145.022-71 is the most accessible way into an early calibre 861 Speedmaster: across the last seven Saturday Glass Case checks, the median asking price sat between $5,950 and $7,240. Layered on that honest market is a second one — a short 1971 transitional caseback, blank around its medallion, that sellers price at two to three times the standard watch, and a label that gets copied onto standard casebacks often enough that our own nightly scan carries a hard-coded exception list for this reference. The test costs nothing and takes one line: read the ring. This guide shows the numbers first, then the test.

The reference in brief

The ST 145.022-71 (1971–1974) closes the early calibre 861 trio. Its headline change is on the back: the round engraved caseback with the Speedmaster medallion at its centre — the back every later 145.022 would wear. The front continues the -69 formula unchanged: printed Ω logo, stepped dial, Medium S lettering, shortened plots. That continuity is the reference’s identification problem: the dial cannot separate a -69 from a -71. The caseback, the bezel (DNN is the -71 standard) and the movement serial do it together, and the serials overlap so heavily that the boundary is genuinely murky. The movement is the calibre 861 — and the standing caution of the family applies: a 145.022 is Apollo-era, not Apollo-flown; every flight-qualified Speedmaster was a calibre 321 watch, and the 861 was only re-qualified by NASA in 1978. The full dossier — caseback generations, dial variants, the disputed points, the source ledger — is in the Reference Library.

ReferenceST 145.022-71
Production1971–1974
CalibreOmega 861 — hand-wound, 17 jewels, 21,600 vph, cam-switched
Case42 mm, twisted lyre lugs, no crown guards, screw-down caseback
CasebackRound engraving around a central Speedmaster medallion (new with this sub-variant)
CrystalHesalite (acrylic), Ω-signed
BezelBlack aluminium tachymeter — DNN (dot next to 90) standard
DialStepped, printed Ω logo, Medium S, tritium plots
Bracelet1171/633 standard; 1175/640 also seen
Lug width20 mm

One caution travels with every listing: because the -69 and -71 share a dial and overlap in serials, a “-71” is a conclusion drawn from three witnesses — caseback, bezel, serial — never from the dial or the seller’s title alone. That discipline matters twice over on this reference, because its one premium variant is identified by a caseback too.

What sellers are asking

Every Saturday, the Glass Case check records the verified 145.022-71 listings on the board and computes the median asking price. Here is the complete recent run — medians of asking prices for USD-denominated listings, with the sample size and the full observed spread:

Glass Case checkMedian asking (USD)Listings (n)Observed range
Sep 12, 2026$6,17520$4,657–$11,383
Sep 19, 2026$5,95023$3,960–$11,253
Oct 3, 2026$6,40327$3,967–$11,197
Oct 10, 2026$6,40323$3,967–$11,197
Oct 17, 2026$6,01917$3,957–$11,050
Oct 24, 2026$7,24010$3,987–$10,991
Oct 31, 2026$6,04914$3,976–$10,970

Price bands updated October 31, 2026

Source: the Saturday Glass Case checks that feed this site’s Price Trends page for the reference. Asking prices are what sellers hope for, not what buyers paid; listings are counted once per check, in USD only, with no currency conversion.

Read the band, not the week. Five of the seven medians sit between $5,950 and $6,403; the Oct 24 figure of $7,240 was computed on just ten listings — on a reference this size, the sample is the movement. The observed spread barely changes week to week: roughly $4,000 at the honest end to roughly $11,000 at the top. What lives at the top of that spread is the subject of the authentication section below. The house sweep records hold 141 tracked -71 listings; 34 carried a fresh asking price in the latest window, at a median of $5,711 and a spread of $3,946–$10,970 — the top figure being the board’s one No-NASA-titled example, an asking price like every other number in this section. The living board, with each listing’s movement, is part of the members’ dispatch.

What the record shows: realized prices

Asking prices are weather; realized prices are climate — and for this reference the verified climate record is deliberately strict. This site’s realized-prices archive admits a sale only when the venue’s own page explicitly stated the realized price, re-verified before it is counted. On that standard, the archive today holds one stamp-verified 145.022-71 sale — the first ever admitted for this reference, recorded in October 2026, out of 14 verified sales house-wide. Consistent with the archive’s own rule, this page carries the count; the record itself — its price, date and venue — is delivered in the members’ dispatch, beside the asking-versus-realized spread for the reference.

One further result is on the reference’s Price Trends ledger, sourced from the venue’s published result and labelled for exactly what it is — sourced, not stamp-verified:

VenueDateRealizedThe watch
SwordersNov 21, 2023£4,000Stepped dial, DN90 bezel, stainless bracelet, no box or papers

Source: the venue’s published result as recorded on the Price Trends ledger for this reference. It has not passed the stamp-verification that gates the realized-prices archive, and it is not counted there.

Read this before quoting the record

The honest summary of -71 realized evidence is: thin. One stamp-verified sale, one sourced auction result from 2023 in a different currency and a different market. Anyone quoting you a confident -71 “value” from realized data is standing on very little — including us, which is why this guide prices the reference off its asking band and its checks, and treats the realized record as a foothold, not a level. The archive grows one verified sale at a time, and this reference’s row has only just opened.

The No-NASA question — the whole game on this reference

In 1971, while Omega and NASA were still agreeing on the wording the caseback would carry, a short transitional run of 145.022-71s left the factory with the medallion and nothing else: no engraving around it. Every standard -71 caseback reads “Flight-qualified by NASA for all manned space missions” in an arc around the hippocampus medallion. The blank-ring casebacks are the genuine “No-NASA” variant — a transitional accident of a few months, and the only -71 variant that commands a structural premium: this site’s September 2026 market report recorded the two tiers side by side, standard examples asking $5,400–$8,000 against No-NASA-titled examples at $15,100–$15,800. Asking prices both — but a premium that size is a standing invitation to copy the label.

The one-line test

Read the ring. Blank ring around the medallion — a genuine No-NASA candidate; proceed to the serial and stamp checks. Engraved ring — a standard caseback, whatever the title says. No loupe, no fee, no expert required: the caseback is the only witness that cannot inherit a label.

The house’s own accuracy record on this point is documented, and it is a method, not an accusation. Our nightly scan’s feed blanket-tags 145.022-71 listings “(incl. ‘No NASA’ caseback)” — the tag travels with the reference whether or not the individual watch carries the variant. On September 23, 2026, we checked one such listing on its own page — a serviced 1974 example with an Omega Extract from the Archives, the very listing that tops this reference’s search results — and verified that its caseback is the standard engraved one, not a No-NASA. The correction is now hard-coded in our own price-tracking builder, so the scan can never re-tag that listing. On October 7 we published the same correction in the other direction: a 145.022-71 that had been offered under a No-NASA title, its caseback carrying the standard engraving for anyone who read the ring. Sellers repeat labels they inherit; nobody in either case invented anything. But the premium is real, the label is cheap to copy, and the difference between the two casebacks is one glance — so on this reference, the title is a claim and the caseback is the evidence.

Which one to buy

The standard medallion -71

The honest buy, and most of the board: the full early-861 experience — step dial, medallion back, DNN bezel — at the ~$6,000 median. Buy on dial condition, tritium honesty, bracelet correctness and service history. A standard -71 in genuinely good order is a better watch, and a better buy, than a tired example of almost anything rarer.

A genuine No-NASA

Buyable — at a premium the evidence has to carry. The blank ring is necessary, not sufficient: the movement serial must sit in the 1971 transitional era, the inside caseback stamp must agree, and at No-NASA money an Omega Extract from the Archives is close to mandatory. Price it against the asking tiers with your eyes open: the two-tier asks are hopes, and the verified realized record for the reference (above) is one sale deep. If the seller’s price needs the label to be true, the label must be proven — by the ring, the serial and the stamp together.

The documented watch

Extract-documented and serviced examples — the pattern of the Dutch Extract listing in our scan records — are worth a real premium over an undocumented watch: the Extract ties the movement to its delivery record. But understand what papers do: they document this watch; they do not mint a variant. A standard caseback with an Extract is a documented standard watch, and it should be priced as exactly that — well.

What to check before buying

  • Read the ring first. Any -71 priced above the standard band on a No-NASA claim gets the one-line test before anything else: blank ring around the medallion, or the claim fails on the spot.
  • Caseback, inside and out. The inside stamp (-71) should match the serial era, and the outside engraving style should match the sub-variant being claimed. A swapped back is how standard watches acquire interesting stories.
  • The -69/-71 boundary. The dial cannot separate them. Require caseback + bezel + serial together, and treat any single-witness identification — especially the inside stamp alone — as provisional.
  • Bezel correctness. DNN (dot next to 90) is the -71 standard. A DON insert appears on early family examples but is also the most commonly swapped part in vintage Speedmasters — on a -71 it is a claim to corroborate, not a bonus to applaud.
  • The dial. Stepped centre, printed logo, Medium S, shortened plots, tritium T marks. Late “drop” letterforms on a stepped dial mean the dial doesn’t belong to the watch; soft printing means redial.
  • Tritium honesty. Plots and hands should have aged to cream, ivory, pumpkin or beige, together. Anything glowing green under UV is Luminova — replaced hands at minimum, and the price should say so.
  • Hands. Baton hour/minute with tritium fill; the chrono seconds hand runs long, through the base of the minute track. A short or chopped seconds hand is a replacement.
  • Bracelet. 1171/633 is standard, 1175/640 also seen; check clasp date stamps against the watch’s era. A claimed 1039 flat-link on a -71 is usually a later swap — fine if priced as one.
  • Crystal. Hesalite with the Ω etched at centre. Polishable and frequently replaced — acceptable when acknowledged.
  • Premium paperwork. For any claim above the standard band — No-NASA, full set, Extract — the documents must name this watch by serial. Paperwork that merely accompanies a watch proves nothing about it.

None of this makes the -71 a frightening buy. It makes it a verifiable one: the reference’s single expensive mistake is visible in one glance at the caseback, and every other check above can be done from photographs, a loupe and an extract, before any money moves.

Sources & method

Asking figures are from this site’s Saturday Glass Case checks (USD-denominated verified listings, medians computed per check, no currency conversion) and from the house sweep records for the board counts (141 tracked -71 listings; 34 with a fresh asking price in the latest window). Realized figures: the stamp-verified count follows this site’s realized-prices archive, which admits only venue-stated, re-verified sales; the Sworders result is the venue’s published result as recorded on the Price Trends ledger, labelled sourced-not-verified wherever it appears. The two-tier asking figures are from this site’s September 26, 2026 market report. The No-NASA account follows the house’s own published correction of October 7, 2026 and its scan records (the September 23, 2026 listing verification, preserved as a standing correction in the price-tracking builder). Reference facts follow the 145.022 dossier in the Reference Library, whose source ledger lists the collector references consulted. All prose is original to Speedmaster Gonzales™.

Keep researching this reference

The story is public. The intelligence is members’.

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