Based in Osaka · We reply in English✉ info@jwatch.jp

ロンジン L4.815.4

Longines

Longines Flagship Heritage Moonphase L4.815.4

What Japanese dealers are asking for a pre-owned Longines Flagship Heritage Moonphase L4.815.4, a model from 2018, and how to buy one in Japan.

Typical asking price in Japan

¥328,000 ≈ US$2,070

Range ¥328,000–¥328,680 from 3 dealer listings (1 sold recently), including Japan's 10% consumption tax. Checked 2026-11-02.

38.5mm steel moonphase on strap; pre-owned prices cluster tightly around ¥330,000.

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 Longines date finder turns it into a production date.

Reading a Japanese listing for this watch

フラッグシップ furaggushippu
Flagship.
コンクエスト konkuesuto
Conquest.
アドミラル adomiraru
Admiral.
Cal.30L
Longines' well-regarded manual-wind calibre of the 1960s.
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.
並行輸入品 heikō yunyū-hin
Grey-market import, first sold outside the official network.

More in our guide to Japanese listing terms.

Where to look

Licensed shops that list Longines 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.