Cuervo y Sobrinos · Historiador

Strap for Historiador Segundos Pequeños Stainless Steel / Ivory / Alligator

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter40 mm
Reference3191.1I
FamilyHistoriador
MovementCuervo y Sobrinos caliber CYS 5157 hours, minutes, small seconds | date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Historiador 3191.1I

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Historiador 3191.1I, seen from the bench

The Historiador Segundos Pequeños by Cuervo y Sobrinos model 3191.1I features a 40 mm stainless steel case with an 18 mm lug width. It is powered by the CYS 5157 caliber movement, which includes hours, minutes, small seconds, and date functions. The watch represents Cuban watchmaking heritage with a design that balances classical proportions and contemporary aesthetics.

Frequently asked questions

What is the lug width of the Cuervo y Sobrinos Historiador 3191.1I?

The Cuervo y Sobrinos Historiador 3191.1I features an 18mm lug width. This measurement represents the precise distance between the upper and lower case attachment pins. It is essential to verify this specification before purchasing an aftermarket strap, as an incorrect lug width will not fit properly, compromising both the security and aesthetic appearance of the watch.

Which strap is best suited for the Historiador 3191.1I?

The ideal strap depends on your use case and personal style. For formal occasions, we recommend alligator or shell cordovan in cognac or black tones, which emphasize the watch's elegant heritage. For versatile daily wear, vegetable-tanned calf leather in brown or grey offers lasting comfort and natural patina development. For sportier casual contexts, a heavyweight canvas NATO in khaki or navy blue transforms the 3191.1I into a versatile timepiece without compromising its character.

How do I change the strap on my Historiador?

Strap replacement requires a specialized tool called a spring bar tool. Position the watch on a stable surface and insert the tool's pin beneath the spring clip of one attachment pin, then press laterally to release it. Once the pin is extracted, the old strap will come free. Repeat on the opposite side. To install the new strap, align the lug openings with the pins and apply controlled pressure until the spring clip engages. If inexperienced, consult a professional watchmaker.

Is the Historiador 3191.1I compatible with quality aftermarket straps?

Yes, absolutely. The 18mm lug width makes the 3191.1I fully compatible with a wide range of high-quality artisanal and industrial aftermarket straps. Milano Straps specializes in 18mm strap collections in noble materials such as alligator, shell cordovan, and vegetable-tanned calf, as well as technical solutions in NATO and FKM rubber. All are certified for this specification and available in numerous colour and construction variants.

How long does a leather strap last on the Historiador?

Leather strap durability depends on material type and usage intensity. A quality alligator or shell cordovan strap, with proper maintenance (monthly cleaning, conditioning every 6–12 months), can last 5–10 years or longer. Vegetable-tanned calf, owing to its greater initial density, typically lasts 4–7 years under normal use. A heavyweight canvas NATO resists degradation for 8–12 years if not subjected to excessive pulling or tears. Periodic strap replacement is nevertheless recommended to maintain the watch's aesthetic appeal and prevent wear that could affect case finishing.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only