French Calfskin 21mm — for formal wristwatches

21MM SIZE · FRENCH CALFSKIN

French leather that doesn't age, withstands, and improves

French calfskin at 21mm is the ideal size for sport watches and medium-to-large dress watches. The almost invisible grain of the Vienne Valley leather ensures a smooth surface that responds well to both mirror polishing and a matte finish. At this width, the French leather maintains its compactness and develops a natural patina over time, without deteriorating.

On a Rolex Datejust or an Omega Constellation, glossy black French calfskin is the undisputed benchmark. The medium brown works equally well on lighter dials. Order your strap in the workshop: we choose the finish and color together on the watch, so that the result is perfect from the start.

French Calfskin Straps 21mm

Frequently asked questions

Which watches with a 21mm lug width are compatible with a French Calfskin strap?

Rolex Daytona 116689, Rolex Day-Date 116688, Rolex GMT-Master II 116681 and similar models with a 21mm lug. Check your watch's reference before ordering.

Why choose French Calf for a 21mm strap?

Compact French leather with an invisible grain. At 21mm it holds up well over time and develops a natural patina. Ideal for dress watches and formal sport watches with light or dark dials.

How do I check that my lug width is really 21mm?

Measure the gap between the watch's lugs with a calliper. If you don't have one, you can send photos of the inside of the case or ask your watchmaker. We check free of charge before making the strap.

How much does a French Calf strap in 21mm cost?

From €120. The price varies according to colour, finish (glossy or matte) and customisations. Request a quote in the atelier.

Is it possible to order a French Calf strap in 21mm made to measure in the atelier?

Casati Milano receives by appointment at Via XX Settembre 15, Milan. We choose the leather together — the strap is created on the watch, not before.