CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.

Watch model

Omega Speedmaster Calibre 321 39.7 mm

Omegagrain: referenceref. 311.30.40.30.01.001
Omega 311.30.40.30.01.001 — product photograph published by Omega

Omegashown: 311.30.40.30.01.001

Omega’s own photograph of their own product, published on their product page. We serve a 240 px copy from our host rather than loading theirs. We did not take this picture and claim no rights in it.

lexical proof — the reference is printed inside the image’s own filename on that page.

Omega’s product page for 311.30.40.30.01.001 ↗ · read 2026-08-26

Movement

Omega 321

Grade not disclosed by the source; the edge points at the grade-unknown execution.

The brand publishes a caliber name of its own and no source in this corpus states which physical design it contains, so this edge sits on the designation rather than on a caliber. The claim is not weaker for it — it is simply narrower than a design.

Sources

  1. 1
    omegawatches.com
    https://www.omegawatches.com/en-us/watch-omega-speedmaster-calibre-321-chronograph-39-7-mm-31130403001001
    manufacturertier 1retrieved 2026-08-262 facts on this page
  2. 2
    omegawatches.com
    https://www.omegawatches.com/en-us/watches/speedmaster/heritage-models/catalog
    manufacturertier 1retrieved 2026-08-263 facts on this page