Technical Archive

Certina
DS First C0142353605100— lug 18mm

Certina DS First C0142353605100: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

DS First Lady Ceramic Rose Black

Artisanal Note

"This model requires a precise 18mm lug width to preserve the original sartorial balance."

Technical Specifications

Certina C0142353605100
Lug Width
18 mm

The essential strap measurement.

Browse 18mm straps →
Reference

C0142353605100

Movement

ETA caliber G15.211 Hours, Minutes, Small Seconds | Date | Chronograph

The Heritage

The Certina DS First is equipped with the ETA Calibre G15.211 with functions of hours, minutes, small seconds, date and chronograph. The movement offers the display of the main time accompanied by chronograph counters and date indication. The reference C0142353605100 belongs to the brand's DS collection.

FAQ

What is the lug width of the Certina DS First C0142353605100?

The lug width of the Certina DS First C0142353605100 is 18mm. This measurement represents the linear distance between the lugs (attachment points) of the case where the strap is fitted. To verify it correctly, use a digital calliper positioned between the internal lugs, excluding any external components. An 18mm strap ensures correct fit and stability during wear.

Which strap is most recommended for the Certina DS First C0142353605100?

For the C0142353605100, a strap in natural alligator leather or shell cordovan offers maximum elegance, enhancing the ceramic case components. If practicality is prioritised, vegetable-tanned calf leather ensures softness and develops a personal patina over time. For sporty contexts, rubber or NATO straps represent robust and versatile choices. The selection depends on intended use and personal aesthetic preferences.

How do I change the strap on the Certina DS First C0142353605100?

Strap replacement is a delicate procedure. You will need a spring bar remover or similar tool to compress the inner spring bar shoulders at the lug. After removing the bar, extract the used strap and insert the new one, ensuring both ends are correctly positioned in the attachments. It is advisable to rest the watch on a flat surface and visually inspect the alignment before considering the task complete.

Can I use an aftermarket strap compatible with the Certina DS First C0142353605100?

Yes, any aftermarket strap with an 18mm lug width is compatible with the C0142353605100. It is important to verify that the selected strap has sufficient extension (holes) to fit your desired wrist size, and that the width is precisely 18mm. Quality leather, rubber or NATO fabric straps ensure reliability and longevity without aesthetic compromise.

How long does a leather strap last on the Certina DS First C0142353605100?

The lifespan of a leather strap varies depending on the material, frequency of use and storage conditions. Premium alligator or shell cordovan leather maintains structural integrity for 5-7 years of daily wear; vegetable-tanned calf leather guarantees durability for 3-4 years. Direct sun exposure, excessive moisture and contact with aggressive detergents significantly reduce longevity. Regular maintenance—drying after rain, application of protective balms—extends the strap's lifespan considerably.