1957-60 NOUVELLE LEMANIA "Broad Arrow" Hands Chronograph Cal.2310, Another Moon Watch of Omega Speedmaster
どう見てもオメガスピードマスターの純正ブロードアロー針…　ムーブメントは、やはり LEMANIA Cal.2310が搭載されてます。別ラインで、レマニア工場で製造されたもう一つのスピードマスターなのかもしれません。
ご存じのかもしれませんがCal.2310は、OMEGAではCal.321と呼ばれているレマニアとオメガが共同開発したキャリバーで、スピードマスターファースト（ブロードアロー針）に搭載されたことで有名になりました。Cal.321はオメガ社が自社特許の銅メッキを施したくらいで、基本設計はレマニア社CH27をリファインしたキャリバーになります。

カテゴリー：　ヌーベル・レマニア　クロノグラフ
制作期：　1957-1960年
製法：　Cal.2310、ステンレス、手巻き、17石
サイズ： 直径38mm（竜頭を含まず）
コンディション：　未使用に近い状態でダイヤル、ケース共に良好。夜光は焼けて光りません。
備考：　本革NATOバンドを1本お付けします。

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1957-60 NOUVELLE LEMANIA "Broad Arrow" Hands Chronograph Cal.2310, Another Moon Watch of Omega Speedmaster

Year: 1957-60
Reference: unknown
Model Name: Broad Arrow
Material: SS
Calibre: Lemania Cal.2310 (Omega Cal.321) Manual
Dimensions: 38×46mm without crown
Accessories: None

It seems like the broad arrow hands of which developed Speedmaster 1st model of Omega. Also the movement is installing LEMANIA call.2310 (Omega cal.321). I guess another moon watch of Speedmaster?
As you may know, Cal.2310 is a caliber jointly developed by Lemania and OMEGA. Omega called Cal.321 in OMEGA and became famous for being installed in Speedmaster 1st.


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