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オメガ 234.30.41.21.01.001

Omega

Omega Seamaster 300 Master Co-Axial (heritage) 234.30.41.21.01.001

What Japanese dealers are asking for a pre-owned Omega Seamaster 300 Master Co-Axial (heritage) 234.30.41.21.01.001, a model from 2021, and how to buy one in Japan.

Typical asking price in Japan

¥795,000 ≈ US$5,020

Range ¥745,800–¥864,600 from 6 dealer listings, including Japan's 10% consumption tax. Checked 2026-11-02.

Black dial, steel bracelet; the earlier 233.30.41.21.01.001 lists for a little less.

What it costs to bring home · Example listing 1 · Example listing 2

When was yours made?

Japanese listings often give the serial number or the year. Our Omega date finder turns it into a production date.

Reading a Japanese listing for this watch

スピマス supimasu
Speedmaster.
シーマス shīmasu
Seamaster.
コンステ konsute
Constellation.
パイパンダイヤル paipan daiyaru
Pie-pan dial, with a faceted edge, seen on vintage Constellations.
Cal. / キャリバー kyaribā
Calibre (movement), e.g. Cal.321 or Cal.861 in a Speedmaster.
保証書 / ギャラ hoshōsho / gyara
Warranty card or papers. ギャラ comes from 'guarantee'.
箱・保証書付き (箱保付き) hako hoshōsho tsuki
Comes with the box and papers.
国内正規品 kokunai seiki-hin
First sold by an official dealer in Japan.

More in our guide to Japanese listing terms.

Where to look

Licensed shops that list Omega among their specialities:

Related models

Prices are what Japanese dealers ask on their own websites, not auction or buyback prices. Condition, papers and dial variant can move a price a lot. See all models in the Japan price guide.