Grand Seiko cessera progressivement de joindre des manuels d'instructions papier à ses produits dans le cadre d'une opération de dématérialisation à partir du 1er avril 2023.

Check the case back of your watch to find the caliber code inscribed on it, and read the instructions pertaining to your watch caliber code. It is a 4-digit number to the left of the hyphen mark.

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9SA5 Instructions of 9SA5 : French