In 2007, Grand Seiko unveiled calibre 9R86, the brand’s first Spring Drive chronograph movement with a GMT function, date, and automatic winding. Today, we look at what makes this movement special, with a focus on one of Grand Seiko’s most important chronograph models – ref. SBGC201.

Members Only: An interview with the designer behind the new GS concept creation, Takuma Kawauchiya.

Powered by the new Calibre 9F85, Refs. SBGP009, SBGP011, and SBGP013 come with a major functional upgrade.