rolexのインスタグラム(rolex) - 8月11日 23時30分

At barely one centimetre in diameter, the Rolex Parachrom hairspring is extremely stable when exposed to temperature variations, is insensitive to magnetic fields, and remains up to 10 times more accurate than a traditional hairspring in case of shocks. The renowned blue colour was created from a special surface treatment process developed by Rolex. In the history of watchmaking, blue hairsprings have been reserved for the most precise and exclusive timepieces.
#Rolex #Submariner

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