The FKM rubber used in SELECT-HEURE models is a fluoroelastomer known for its resistance to chemicals, heat, and UV. It prevents discolouration and ensures hypoallergenic contact with the skin, ideal for sensitive wrists.
HIRSCH Performance straps incorporate a breathable natural rubber lining. This material absorbs moisture while remaining flexible, preventing sweat build-up for extended wear without discomfort.
Quick-fit systems, such as quick-release spring bars, allow you to change straps in seconds. This offers practical modularity to adapt your style to every occasion without tools.
How to choose your hybrid strap based on use
For sports activities, choose FKM. Its dense molecular structure resists sweat and intense friction. HIRSCH models guarantee water resistance up to 300 metres, suitable for swimming or triathlon.
For everyday use, HIRSCH leather with a natural rubber lining combines elegance and practicality. Maintenance is limited to a quick wipe with a sponge, ideal for those who alternate between the office and leisure without compromising on aesthetics.
Neutral colours (black, brown) suit all watches, while bright shades (blue, red) stand out for a bold look. Standard sizes (18–26 mm) ensure compatibility with most cases.
What is a leather-and-rubber watch strap?
Hybrid straps combine a genuine leather or canvas exterior with a high-quality rubber lining. This structure optimises the aesthetic benefits of leather and the durability of rubber. The precisely bonded lining prevents sweat absorption and ensures comfortable contact. Manufacturing guarantees strong adhesion between layers, limiting delamination under stress.
The rubber used is mainly FKM or vulcanised natural rubber. Unlike silicone, these materials resist water, UV, and chemicals. The vulcanisation process, combining heat and sulphur, strengthens durability without losing flexibility. FKM withstands varied environments, from everyday wear to diving, thanks to its dimensional stability even when immersed.
This synergy meets practical needs: leather adds elegance, while rubber offers abrasion resistance and easy maintenance. SELECT-HEURE models include quick-release spring bars for tool-free changes. The HIRSCH Performance range offers matte or glossy finishes, in various sizes (20 mm lug width, 16 mm buckle width) to fit all wrists.
For demanding activities, FKM stands out for its robustness. Used since the 1960s in diving watches, it remains intact under pressure. Borealis Vulcanized Rubber Strap straps, known for their soft texture, repel dust. Models such as Joseph Bonnie, inspired by the 1960s, feature continuous crosshatch patterns and six colours (black, midnight blue, olive green, ecru, mouse grey, Florida orange) for a versatile style.
The unique benefits of a leather-and-rubber hybrid strap
A common issue with classic leather straps is their vulnerability to moisture. Natural leather absorbs perspiration, which can lead to unpleasant odours, deformation, or premature deterioration. The solution? An FKM rubber lining integrated inside the strap. This waterproof material acts as a protective barrier, preventing moisture from penetrating the leather. The result: a strap that remains supple, resistant to everyday wear, and comfortable even during intense physical activity or in hot climates. Unlike silicone, FKM does not retain dust or residue, ensuring easier maintenance.
FKM rubber revolutionises the durability of leather straps. Unlike traditional models, friction points (such as the attachment area) are reinforced with this industrial rubber known for its resistance to tearing, UV, and extreme temperatures (-30°C to +250°C). This double layer makes the hybrid strap significantly more robust than leather alone, especially for heavy watches or sporting use. At HIRSCH, the “Performance” collection illustrates this innovation, combining a premium look with a technical structure. Made in Europe, this rubber also prevents UV-related discolouration, a common flaw of less resistant materials.
Wrist comfort reaches a new level with this combination. FKM rubber, hypoallergenic and soft to the touch, conforms perfectly to the skin without slipping. This eliminates irritation caused by raw leather and prevents the watch from rotating—an essential advantage for dynamic activities. For example, SELECT-HEURE “Leather with FKM rubber lining” straps include quick-release spring bars for fast changes while maintaining optimal grip. This design combines the elegance of leather and the practicality of rubber, suitable for varied contexts from the office to diving. Available in widths from 16 to 26 mm and in various colours, this type of strap suits all styles, whether paired with a dive watch or an elegant everyday model.
How to choose your leather-and-rubber watch strap?
Define your primary use
Your activity guides your choice. For everyday use, choose smooth or grained leather (black, brown, navy blue) with a natural rubber lining. Intense sports require reinforced calf leather paired with sweat-resistant FKM. For diving, opt for a model water-resistant up to 300 metres, with water-treated leather and an FKM lining.
HIRSCH Performance straps, such as the James or the Ayrton, combine strength and comfort in wet environments. Their hybrid structure ensures optimal grip. An unsuitable choice could cause rapid wear or discomfort during activity.
Assess material quality
Calf or buffalo leather combined with FKM rubber resists UV, chemicals, and abrasion. This fluoroelastomer, superior to silicone, prevents dust build-up and adapts to temperature variations. SELECT-HEURE models use this material for its durability. HIRSCH versions, designed in Europe, guarantee precise finishing and ethical options such as plant-based leather.
Check the fastening system
SELECT-HEURE quick-release spring bars allow you to change straps without tools. This system, integrated into the lug bars, makes interchangeability easier. A proven mechanism reduces the risk of breakage, especially during intense activity. HIRSCH models, fitted with reinforced spring bars, ensure optimal security.
Match the style to your watch
For a cohesive look, match the stitching (contrasting for sport, tone-on-tone for elegance) and the buckle (polished steel, black) to your watch. HIRSCH straps offer customisation options (colours, widths) to fit all wrists. A mismatch would detract from the overall harmony.v
