Omega Speedmaster Moonwatch

What is the Omega Speedmaster Moonwatch?

The Moonwatch is the manual-wind chronograph at the center of the Speedmaster family, and the store's listings show both its current form and the relatives that explain it. The current Moonwatch Professional runs on Omega calibre 3861: the listings record 42 mm cases, 26 jewels, and a 50-hour power reserve, and the sets of the 3861 pieces include the Master Chronometer card among their papers. Around it sit three instructive branches: the Calibre 321 Ed White, a reissue of the historic calibre 321 (17 jewels, 55 hours recorded); the Moonphase model on calibre 1866 (48 hours recorded); and the Grey Side of the Moon, which leaves the manual Moonwatch formula entirely for an automatic co-axial movement, calibre 9300, with 54 jewels and a 60-hour reserve recorded.

Quick facts

  • The current Moonwatch Professional runs on Omega calibre 3861, in a 42 mm case.
  • Four movements appear in this family in the listings: 3861, 321, 1866, and 9300.
  • The 310. references are the current generation and the 311. references the previous one, within these listings.
  • Sets vary more than most by reference, so inventory the box against the specific reference.

Specifications

Case size 42 mm on the calibre 3861 Moonwatch Professional listings
Case material Steel, Moonshine gold, Sedna gold, or grey ceramic, depending on the reference
Movement Calibre 3861 on the current Moonwatch Professional; calibre 321, calibre 1866, and calibre 9300 on the related branches in the listings
Jewels 26 on the calibre 3861 listings; 17 on the Calibre 321; 54 on the calibre 9300
Power reserve 50 hours on calibre 3861; 55 hours recorded on the Calibre 321; 48 hours recorded on calibre 1866; 60 hours recorded on calibre 9300
Bracelet or strap Varies by reference, including straps and gold bracelets in the listings

Which Moonwatch variants are there, and how can you tell them apart?

Variant matrix

Reference How to tell it apart
310.32.42.50.02.001 (Silver Snoopy Award) Steel on a strap, silver dial, calibre 3861. The far side of the moon is on the sapphire case back, an animated Snoopy in his command module rotates when the chronograph runs, and the Apollo 13 trajectory is embossed inside the strap.
310.60.42.50.10.001 Moonshine gold, green dial, on the gold bracelet.
310.62.42.50.99.001 Moonshine gold, gold and black dial.
310.63.42.50.10.001 Moonshine gold, green dial.
310.60.42.50.01.001 Sedna gold, black dial.
311.30.40.30.01.001 (Calibre 321 Ed White) Steel, black dial, exhibition case back per its listing.
311.30.44.32.01.001 (Moonphase) Steel Moonphase with the aventurine dial, with the mother of pearl moon phase against the starfield dial.
311.63.44.51.99.002 (Grey Side of the Moon) Grey ceramic case, meteorite dial, automatic calibre 9300, and a fully luminous bezel per its listing.

Within these listings the reference itself sorts the family: the 310. references are the current generation and the 311. references the previous one, and the two digits after that separate steel (30 and 32) from gold (60, 62, 63) and ceramic (63 in the Grey Side's 311.63). The movement is the deeper sort: 3861, 321, 1866, and 9300 watches wear similar faces and behave differently on the wrist and on the bench.

What should you check on any Moonwatch?

Identify the movement first, from the paperwork and the reference, because everything else follows from it: a Calibre 321 and a calibre 3861 are different propositions with different servicing, and the Grey Side's automatic 9300 is a different watch again. Sets in this family vary more than most, so inventory the box against the specific reference: the Snoopy set in the store's listings includes its suitcase-style box, loupe, microfiber cloth, commemorative booklet, Master Chronometer card, pictograms card, and warranty card, while the Ed White set includes extra straps, extra links, a setting tool, and a loupe. A set missing its reference-specific extras is incomplete in a way a generic box check will not catch. On the 3861 pieces, confirm the Master Chronometer card is present with the warranty card and pictograms card. On the gold references, separate the near neighbors by dial before anything else: two of the Moonshine references wear green dials and one wears gold and black, and the references, not the photographs, are what separate them.

Checklist at a glance

  • Movement identified first, from the paperwork and the reference.
  • Box inventoried against the specific reference, including its reference-specific extras.
  • On the 3861 pieces, the Master Chronometer card present with the warranty card and pictograms card.
  • On the gold references, near neighbors separated by dial and by reference, not by photographs.

How do you buy a Moonwatch from The Stellaris Collection?

Examples of this family are listed on our site.

Warranty: while a manufacturer warranty is in force it applies; a watch out of manufacturer warranty carries a 1-year warranty from The Stellaris Collection. Purchases are completed directly with our team, by invoice, with payment by bank wire. Email info@thestellariscollection.com or call (213) 444-0926. By appointment only. We are an independent dealer, not an authorized Omega retailer.

Frequently asked questions

Which movement does the current Moonwatch Professional use?

Omega calibre 3861. The listings record 42 mm cases, 26 jewels, and a 50-hour power reserve, and the sets of the 3861 pieces include the Master Chronometer card among their papers.

Is every watch in this family a manual-wind Moonwatch?

No. The Grey Side of the Moon leaves the manual Moonwatch formula entirely for an automatic co-axial movement, calibre 9300, with 54 jewels and a 60-hour reserve recorded.

How do the 310. and 311. references differ?

Within these listings, the 310. references are the current generation and the 311. references the previous one. The two digits after that separate steel from gold and ceramic.

How can you separate the gold Moonwatch references?

By dial and by reference, not by photographs. Two of the Moonshine references wear green dials and one wears gold and black, and the references are what separate them.

What should a Moonwatch set include?

It depends on the reference. The Snoopy set in the store's listings includes its suitcase-style box, loupe, microfiber cloth, commemorative booklet, Master Chronometer card, pictograms card, and warranty card, while the Ed White set includes extra straps, extra links, a setting tool, and a loupe.

Related reference guides

Explore Watch Brands