Integrated Bracelets Are the Latest Tricky Obsession in Watches

A deceptively simple-looking innovation slips onto wrists.

Photographer: Victor Prado for Bloomberg Businessweek

For their new Streamliner collection of timepieces, leaders at the Swiss watchmaker H. Moser & Cie. wanted to create everything from scratch: the mechanism, the case, the dial—everything. So where did they start?

The bracelet.