Omega Refreshes the 38mm Speedmaster Moonwatch With Round Subdials

Omega has revised seven Speedmaster Moonwatch references in 38mm, switching oval subdials to round and widening the tachymeter scale with a broader dot-over-90. Six of the watches use Calibre 3330 with a date. A black-dial version uses Calibre 3332 with no date. The case measures 38×14.75mm. Prices run from CHF 5,100 to CHF 10,200. Five-link Moonwatch bracelets are part of the refresh.

The 38mm Moonwatch has always been the smaller sibling of the 42mm professional. Oval registers were the giveaway. Round registers align it visually with the larger Moonwatch. According to Omega’s update, the tachymeter printing is also broader at the 90 mark. That is a legibility change, not a new movement family. Builders who chase chrono looks on NH platforms should still pick movement first; compare options in the NH35 vs NH36 vs NH34 movement guide (none is a column-wheel chrono, which is the point).

Seven references, two calibres

Calibre 3330 with date covers six of the seven. Calibre 3332, no date, is reserved for the black-dial watch—the one that wants a cleaner Moonwatch face. 14.75mm of thickness on a 38mm diameter is not a dress watch. It is a compact professional profile. The price band from CHF 5,100 to 10,200 implies a spread of metals and diamonds rather than a single steel SKU.

Why round subdials matter

Collectors argued about the ovals for years. Round registers photograph like a Moonwatch. They also change how hands park and how lume plots sit. A five-link bracelet is the other half of the refresh: more flex, more “professional” language on a 38mm case. Link-style debates on other platforms are covered in the Jubilee vs Oyster bracelet guide.

Crystal and bezel printing do the rest of the Moonwatch job. Aftermarket bezel work on other watches is a different skill; see the bezel insert material and fit guide. If you are building a smaller sports watch rather than buying a 38mm Speedmaster, a 5KX donor is the usual size conversation; the 5KX SRPD mod guide is the map.

Date versus no-date

Six watches with a date and one without is a clear hierarchy. The black no-date 3332 is the purist SKU. The 3330s are the daily SKUs. Thickness stays 14.75mm either way. Buyers who hate a date window already know which one to ask for.

Lume on a Moonwatch is a heritage plot. If you are upgrading lume on a Seiko-family chrono-look build, do not copy Omega’s exact registers; match compound and height. Use the lume upgrade guide.

FAQ

What changed on the 38mm Speedmaster Moonwatch?
Seven references now have round subdials instead of ovals, a broader tachymeter at the 90, and five-link Moonwatch bracelets in the mix.

Which movement has a date?
Calibre 3330 with date on six references; Calibre 3332 with no date on the black-dial watch.

How big is it and what does it cost?
38×14.75mm, priced from CHF 5,100 to CHF 10,200.

Omega’s 38mm Moonwatch refresh is a drawing correction: round registers, a wider 90 on the tachymeter, and a five-link bracelet. The calibres stay in the 3330/3332 pair, and the black no-date remains the clean face in the set of seven.