Overall, Strehler is actively renewing the watchmaking genre by building deliberately minimalist movements, designed like living organisms liable to fascinate devotees of fine mechanical engineering. His Papillon model is magnificently framed by a case featuring a highly original aesthetic: a kind of tonneau (barrel) shape topped by a bezel evoking a TV-type screen with rounded edges. It has become a hallmark of creations from the brand with the butterfly – a recurrent motif in its movement designs and also the brand symbol.

In 2012, Strehler reprised the butterfly-shaped bridge concept to create the Cocon, a more conventional-looking watch with a multi-level dial bearing hands. Visible through the back, the dainty insect has been redesigned and seems to have taken shelter inside its cocoon, where it appears adorned with Côtes de Genève. The latter decoration was picked up in 2013 on the Sauterelle caliber, which also features a remontoir d’égalité constant-force mechanism with a jumping action. In 2015, the butterfly returned to center-stage on the front of the Papillon d’Or watch, crafted in solid gold and beautifully enhancing a model displaying the hours and minutes with blued steel hands sweeping over an airy silver ring.