Sailing ahead with Blue Sea.

Blue Sea

Blue Sea is limited to 999 pieces.
The 45.8 millimetres stainless-steel case is covered with a blue rubber coating giving a remarkable appearance and a truly comfortable feel.



April 25, 2012

For over 166 years Ulysse Nardin has been creating some of the most reliable marine chronometers in existence.

With this latest addition to the Marine Diver collection, the Manufacture in Le Locle firmly establishes its reputation as a cutting-edge watchmaker.

Resolutely anchored in aquatic sports, the brand new Blue Sea is designed to tackle extreme conditions. It perfectly combines its dual function as a diving instrument and beautiful watchmaking piece. Blue Sea has a self-winding movement featuring a 42-hour power reserve indicator, oversized small seconds and large date display.

A symbol of the vigour of youth, this powerful timepiece showcases Ulysse Nardin’s constant advances in watchmaking technology. Its stainless-steel case, 45.8 millimetres in diameter, has been specially treated with a sophisticated vulcanisation process giving it a blue rubber coating with a remarkable appearance and a truly comfortable feel. Its exhibition case-back reveals the self-winding movement also blued. The non-moving metal parts of the movement have been treated with a stainless blue titanium based alloy (ion sputtering process). Where necessary, the metal parts have been reworked to accommodate the blue coating, the thickness of which is 1 micron with a hardness of 1500 HV.

Blue Sea


Resolutely anchored in aquatic sports,Blue Sea has a self-winding movement featuring a 42-hour power reserve indicator, oversized small seconds and large date display.

To enhance its look, a wave pattern adorns the structured strap and dial. The hour markers and hour and minute hands are covered with blue luminescent material for improved readability. Its power-reserve indicator is situated at 12 o’clock while the small seconds and large date are displayed at 6 o’clock. Small hands are painted blue. The sapphire crystal has been treated with an anti-reflective coating. Fitted with a unidirectional rotating bezel and screwed crown, its individually-numbered case is water-resistant to 200 metres. This edition is limited to 999 pieces, each individually numbered on the side of the case. The reliability of the Blue Sea is further strengthened by an exclusive black ceramic folding clasp and a blue rubber strap with ceramic components.

Blue Sea


The non-moving metal parts of the movement have been treated with a stainless blue titanium based alloy.

In the blue depths of the ocean bed, Blue Sea continues to sail ahead.

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