One of the most historically significant wristwatches ever produced — the reference worn during the Apollo 11 lunar landing.

Quick Facts

• Manufacturer: Omega
• Reference: 105.012 (also exists as 105.012-63, 105.012-64, 105.012-65, 105.012-66 case variants)
• Production: 1963 – 1968
• Movement: Caliber 321 (column-wheel manual chronograph)
• Case: 42 mm asymmetric “professional” case (the first Speedmaster reference with crown guards)

Historical Significance

The 105.012 is widely accepted as the reference worn by Buzz Aldrin on the lunar surface during the Apollo 11 mission in July 1969 (Neil Armstrong’s Speedmaster remained in the Lunar Module). The reference is the first Speedmaster to feature the asymmetric professional case with crown guards — the case design that would define the Speedmaster line through to the present day.

Variants & Sub-References

The 105.012 was produced with multiple case maker stampings on the inside lug, including 105.012-63 (CB), 105.012-64 (HF), 105.012-65 (HF), and 105.012-66 (CB and HF). The case-maker designation appears between the lugs and is one of the primary collector identifiers. Earlier examples featured the “Step dial” — a stepped outer minute track — while later examples used flat dials.

Identification

The Caliber 321 movement is one of the most desired vintage chronograph movements ever produced. Authentic examples should display correct period dial typography (the so-called “T Swiss Made T” tritium designation), correct hands (the early “applique” Omega logo and stick hands), and original case proportions. Refinished dials are common and significantly impact value.

Authentication Red Flags

• Service-replacement dials (especially “Mark II” service dials).
• Movements other than the original Caliber 321 — service-swapped movements destroy collector value.
• Polished cases that have lost the original brushed top-surface and chamfered lug bevels.
• Bracelets that don’t match period-correct Omega 1039 or 1116 references.

Market

Pre-Moon Speedmasters with original Caliber 321 movements occupy the upper tier of the vintage Speedmaster market. Original-paint dials, full-set provenance (papers, original bracelet), and case sharpness drive premium pricing. Reference Phillips, Christie’s, and Sotheby’s auction results for current comps.

Service

The Caliber 321 is a complex movement; service should be performed by Omega Vintage Department in Bienne, Switzerland (which has retooled to service Caliber 321), or by a recognized vintage Omega specialist. Save all original service parts to preserve provenance.

See Also

• Rolex Submariner Reference 5513
• Glossary: Caliber 321
• Most Collectible Vintage Chronographs

Vintage watch authentication is highly specialized. Engage a recognized expert before any high-value transaction.

About This collectible

The Omega Speedmaster Reference 105.012 (Pre-Moon) is a notable entry in the collectible category. Whether you are a seasoned collector or evaluating your first piece, understanding provenance, condition, and market context is essential for confident decisions. This guide summarizes what makes this item collectible and how to evaluate examples in the market.

Identification & Authentication

Authenticating a Omega Speedmaster Reference 105.012 (Pre-Moon) requires attention to period-correct materials, manufacturing marks, signatures, and chain of custody documentation. Where third-party authentication exists (PSA, JSA, Beckett, SGC, PCGS, NGC, or category-specific authenticators), graded examples carry significant premium over raw pieces. Consult a recognized authenticator before high-value purchases.

Valuation & Market Pricing

Values for the Omega Speedmaster Reference 105.012 (Pre-Moon) vary by condition, provenance, completeness, and demand. Track recent sold prices on major venues including Heritage Auctions, Goldin, Christie’s, Sotheby’s, and eBay completed listings to benchmark fair market value. Realized sales reflect true value; asking prices do not.

Condition & Grading

Condition is the largest variable affecting value. Use the grading scale appropriate to the category and document defects honestly. For graded items, verify certification numbers on the grader’s website. For raw items, photograph all surfaces under neutral lighting and disclose any restoration or imperfections.

Where to Buy & Sell

Reputable venues include major auction houses, established dealer networks, specialty shows, and vetted online marketplaces. Avoid private cash transactions with unknown parties for high-value pieces. Use buyer protection or escrow when transacting at scale.

Frequently Asked Questions

How do I know if my Omega Speedmaster Reference 105.012 (Pre-Moon) is authentic?

Authenticity is best confirmed by a recognized third-party authenticator. Visual inspection alone is rarely sufficient for high-value pieces.

What is a Omega Speedmaster Reference 105.012 (Pre-Moon) worth?

Value depends on condition, provenance, and completeness. Check recent sold prices on major auction venues for comparable examples.

Where should I sell my Omega Speedmaster Reference 105.012 (Pre-Moon)?

For high-value pieces, established auction houses with category expertise typically deliver the best results. For mid-market items, vetted online marketplaces or dealer networks balance reach and fees.

Does grading add value?

For most categories, third-party grading adds meaningful value to top-condition examples. For lower-grade pieces, the grading fee can exceed the value uplift.