Technical Archive

Certina
DS Prime C0043101129700

Certina DS Prime C0043101129700: strap made to measure on the watch at the Casati Milano atelier, by appointment.

DS Prima Lady Shape Brown

Technical Specifications

Certina C0043101129700
Reference

C0043101129700

Movement

ETA caliber F03.111 Hours, Minutes, Seconds | Date

The Heritage

The Certina DS Prime mounts the quartz caliber ETA F03.111 with hour, minute, second and date functions. The movement ensures precision and reliability for daily use. The reference C0043101129700 represents a proposal from the DS collection characterized by contemporary lines.
Made to Measure

The strap for this watch is made to measure

On the Certina DS Prime the bracelet is drawn as part of the case: no catalogue strap will fit. In the atelier we take the measurements on the watch itself and build the strap on the piece — that is the work of Casati Milano.

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FAQ

How do I change the strap on a Certina DS Prime C0043101129700?

Changing the strap on the C0043101129700 requires a specific tool: a spring bar removal tool. Locate the two lateral holes at the extremities of the lugs on the case. Insert the thin end of the removal tool into one of the holes, gently lifting the internal pin upward until the strap disengages. Repeat the operation on the other side. For installing the new strap, align the two ends of the lug with the case holes and press downward until the pin clicks into place. Verify that the strap is firmly secured on both sides by pulling gently.

How long does a leather strap last on a Certina DS Prime C0043101129700?

The lifespan of a leather strap depends on multiple factors: the type of leather (alligator, calf, cordovan), the quality of tanning (vegetable or chrome-tanned), the intensity of use and environmental conditions (humidity, UV exposure). An artisanal-quality alligator strap, used moderately and subjected to regular maintenance, guarantees 5-8 years of useful life. Shell cordovan extends this duration to 10 years thanks to the denser fibre structure. Factors accelerating deterioration: acidic perspiration from the wrist, aggressive detergents, direct UV exposure. To extend longevity, recommend monthly cleaning with a damp cloth and occasional application of leather-specific oil (every 2-3 months).