Jean Marcel Tantum


January 2019

Jean Marcel Tantum

With his latest collection, the TANTUM, Jean Marcel presents eight noble mechanical Swiss made wristwatches in an extremely flat stainless steel case. With a secret signature for their bearers.


amed after the Latin word for “only”, the collection features two automatic chronographs with an overall height of only 11 mm, four three-hand automatic watches with date – and an extremely slim 8 mm total height – and, as a special highlight, two hand-wound models that are only 6 mm high. Due to the minimised overall height of the watch design, the timepieces in the new TANTUM collection, manufactured in a strictly limited edition of 100 pieces worldwide using only the finest ETA Swiss movements, can therefore be regarded as the flattest models in their respective market segments. The cases have each a diameter of 42 mm.

Click on the image to enlarge PDF
Click on the image to enlarge PDF
From 6 to 11 mm! Despite being so slim, the stainless steel cases of the TANTUM automatic watches and chronographs are pressure resistant up to 10 ATM, while the hand-wound models withstand up to 5 ATM of pressure.

And there is a special signature: breathing on the TANTUM watch glass reveals the “JM” company logo for a brief moment. This “mystery effect” by Jean Marcel, a sophisticated secret signature incorporated into the sapphire crystal’s anti-reflective coating, can be regarded as a unique sign of authenticity for the Swiss brand – thanks to an elaborate partial coating technology that cannot easily be imitated.

Jean Marcel will be present at the Baselworld watch fair in 2019. You can find the brand in Hall 1.1 E09.