Mechanics 3 min read
The simple science of quartz watches
Learn how a battery, a tiny crystal and a simple circuit work together to keep your quartz watch running with highly reliable accuracy every day.
Certina · DS-8
Ref. C0334571608100
The Certina DS-8 Moon Phase Stainless Steel / Anthracite / Strap takes a 20 mm strap: measure between the lugs and that is the only number you need. We list 37 straps in that width. With a 41 mm case and 100 m of water resistance, a strap of medium thickness keeps the balance. Quartz movement. Most straps here come with quick-release spring bars, so the swap takes a minute and no tool.
Width is a starting point. Check the case and end fittings before choosing.