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-7
DS-7 Quartz
Ref. C0434101603100
Watch details and strap advice
- Case diameter
- 39 mm
- Case height
- 9.72 mm
- Case material
- Stainless Steel
- Case shape
- Round
- Water resistance
- 100 m
- Movement
- Quartz
- Caliber
- F06.412
- Dial
- Silver
The Certina DS-7 Quartz Stainless Steel / Silver / Strap takes a 10 mm strap: measure between the lugs and that is the only number you need. We list 2 straps in that width. With a 39 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.
Straps by lug width (10 mm) 2
All 2 10 mm strapsWidth is a starting point. Check the case and end fittings before choosing.
-
Slim Colour LeatherLeather€24.90 -
Denim StitchNylon€22.90
Read before you choose
All stories
Tutorial 6 min read
Omega Speedmaster watch strap guide
One black dial, four different directions. Explore suede, nylon, rubber and woven straps, starting with the 20 mm lugs of a specific Moonwatch reference.
Tutorial 3 min read
Choosing a NATO strap or a two-piece strap
Learn how NATO and two-piece straps attach to your watch, affect wrist height, and provide security so you can choose the right style.