The Hublot Spirit of Big Bang reference 641.JY.0190.RT was introduced in 2019. This limited edition of 100 pieces has a tonneau-shaped case made of polished yellow sapphire crystal, held together by black-plated titanium screws. The dial is openworked to reveal parts of the self-winding HUB4700 movement, which is based off Zenith’s El Primero. This watch comes fitted with a transparant yellow strap.
