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The Nature strap from RIOS1931 is a straightforward, heavily built leather strap that offers more substance than its price would suggest. Cut from genuine buffalo leather and finished using traditional techniques, it has a dense, textured character that suits tool watches and larger cases particularly well.
Nature favors durability and structure over refinement or softness, delivering a confident, grounded look on the wrist without unnecessary decoration.
Handmade in Germany using traditional leather construction.
Genuine buffalo leather has a naturally coarse grain and firmer temper than calfskin, giving the strap a thicker, more substantial feel with visible texture and long-term durability. The strap is hypoallergenic, making it suitable for wearers with sensitive skin.
Construction follows the Art Manuel Swiss full-bugg (Rembordé) method, with the leather folded and stitched rather than edge-painted. Handmade saddler’s seams are used throughout, including, impressively, on the keepers.
Thickness: approx. 6.0mm→5.0mm (measured at lug end, tapering toward buckle)
Padding: Lightly padded
Lining: Leather
Edges: Painted
Stitching: White
Sheen: Semi-matte
Buckle: Polished stainless steel
Taper by size:
Spring bars: Standard (free pair included)
Apple Watch: 22mm fits Apple Watch (with strap adapters).
Buffalo leather wears with a dense, substantial feel that gives the watch a strong, grounded presence. The leather has noticeable body and texture, holding its shape rather than flexing or collapsing.
The two-piece layout helps keep the watch centered once fastened. With its thicker build and controlled taper, the strap settles into position through daily wear, favoring solidity and consistency over softness or drape.
Length & wrist size:
115mm / 80mm (fits wrists approx. 7.0–8.0in)
Measurements exclude the buckle.
Water exposure: Splash resistant, suitable for light moisture such as hand washing or rain.
Clean with a soft, slightly damp cloth. Do not use leather cleaners, conditioners, or creams, as they may darken the leather unevenly. Avoid prolonged contact with water, perspiration, and direct sunlight. If the strap becomes damp, dry it with a soft cloth and allow it to air dry completely at room temperature.
RIOS1931 was founded in Augsburg in 1931 by master craftsman Riemer Oswald. Now in its third generation of family ownership, the company is one of Germany’s most established makers of leather watch straps and accessories.
RIOS1931 continues to operate with a workshop-based approach, emphasizing traditional construction methods, hand-finishing, and controlled production rather than mass manufacture. The focus remains on durability, consistency, and long-term wear rather than trend-driven design.
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Independent watch strap specialist since 2007