Only a tiny percentage of hydrogen produced today is green; in fact, all low-carbon types of hydrogen (that includes blue, pink, yellow, turquoise, and aqua) account for less than 1% of global totals.

While a large section of the dial has a turquoise-like color, smaller elements, such as the hour markers, are black. The stylish Omega Seamaster Aqua Terra 150M watch is offered in two different ...