Technical Archive

Certina
Heritage Collection C024.407.18.031.00— lug 20mm

Certina Heritage Collection C024.407.18.031.00: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

DS-2 Powermatic 80 Stainless Steel / Silver

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Certina C024.407.18.031.00
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

C024.407.18.031.00

Movement

ETA caliber C07.611 Hours, Minutes, Seconds | Date

The Heritage

The Certina Heritage Collection ref. C024.407.18.031.00 features the ETA C07.611 caliber with hour, minute, second and date indications. The watch has 20mm lugs and belongs to the Swiss manufacturer's Heritage line. The movement offers the essential time and calendar functions in a three-hand configuration.

FAQ

What is the lug width of the Certina Heritage Collection C024.407.18.031.00?

The lug width of the Certina Heritage Collection C024.407.18.031.00 is 20mm. This is the distance measured between the two spring bar posts where the strap anchors. To verify correctly, position a calliper or ruler between the posts, completely excluding any passant or existing strap element.

Which strap is best suited for the Certina Heritage Collection C024.407.18.031.00?

For the Certina Heritage Collection C024.407.18.031.00, the most suitable material depends on intended use. Vegetable-tanned leather in cognac or tobacco tone complements the satinous case finish. Black alligator is the formal maximum choice. NATO cotton ensures daily practicality. FKM rubber is ideal for aquatic environments. All straps must feature a 20mm lug width.

How do you change the strap on a Certina C024.407.18.031.00?

Strap replacement requires a spring bar removal tool. Secure the watch in a stable holder, insert the tool's tip into the small lateral notch of the spring bar, apply inward pressure to retract the bar, then extract the strap vertically. Repeat on the opposite side. Insert the new strap by aligning the holes with the posts and release the tool slowly to allow the bar to engage properly.

Is the Certina C024.407.18.031.00 compatible with aftermarket 20mm straps?

Yes. The Certina Heritage Collection C024.407.18.031.00, with its 20mm lug width, is compatible with any artisanal or industrial strap presenting the same lug width. Before purchasing, always verify that the strap is explicitly specified as 20mm. Avoid straps lacking specific dimensions, as they may present insufficient manufacturing tolerances.

How long does a leather strap last on a Certina Heritage Collection?

Leather strap longevity depends on usage intensity and construction quality. A vegetable-tanned leather of artisanal quality, worn daily, develops appreciable patina within 6–12 months and maintains structural functionality for 3–5 years before requiring replacement. Wear acceleration occurs in humid environments (swimming, perspiration). Rubber offers superior lifespan (5–7 years) under extreme conditions. Store the watch in a dry environment and avoid exposing leather straps to direct heat sources.