LONGINES Ultra-Chron Box Edition L2.836.4.52.9 Serpenti denim blue hue

denim blue hue

A green cabochon adds the final

Notebook weight: 333 grams

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LONGINES Ultra-Chron Box Edition L2.836.4.52.9 Serpenti denim blue hueThe Longines Ultra Chron takes its cues from the Ultra Chron Diver that the Swiss brand released in 1968. This model was powered by the Calibre 431 that introduced a dry lubrication patent as a solution to the fact that being more exposed to strain, high beating movements require more durable parts and better lubricants to deal with the added friction.