One (1) A.S. 1187-94 Alloy Mainspring Bulova 10BC 10BS Exact White Alloy
A.S. 1187-94 Alloy Mainspring Bulova 10BC 10BS Exact White Alloy
One (1) vintage white alloy mainspring in original “Nervinca / EXACT” packaging.
Part / ID (as marked):
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A.S. 1187-94 (written on the side label)
Fitment:
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Fits Bulova 10BC
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Fits Bulova 10BS
Package markings (visible):
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“EXACT” – Unbreakable White Alloy Mainspring
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“NERVINCA” branding
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French dimension fields show: Hauteur 7 / Épaisseur 11 / Longueur 11 1/2 (see photos)
Condition:
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Stored in original case; packaging shows age/handling wear.
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Mainspring is sold as a part;
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