Strap for Oiva Classic White

The lug width of the Leijona Heritage Oiva 19.300.01.110 is 20mm. This measurement represents the distance between the metal lugs inside the case and determines strap compatibility. It is essential to verify that the purchased strap is dimensioned exactly at 20mm to avoid lateral play or forcing during installation.

The choice depends on intended use and aesthetic preference. For formal contexts, alligator in cognac tones or vegetable-tanned calf leather offer refined elegance and evolving patina. For daily versatility, black calf leather with a satin steel deployante maintains Nordic sobriety. For humid or sports environments, canvas NATO or FKM rubber ensure functionality without compromise. All materials in 20mm format are compatible.

The strap connects to the case via two spring bars. Remove the first bar using a dedicated tool—a professional strap changer or small steel lever—by pushing the bar toward the centre until the end is freed. Extract the strap from the first lug. Repeat with the second bar. Insert the new strap—verifying it is 20mm—into the bars and reposition the bars into their seats. The operation requires care to avoid scratching the lugs.

Yes, provided the strap is dimensioned at 20mm. Artisanal aftermarket straps, if constructed with premium materials and precise finishing, often exceed OEM strap quality. Always verify that the lugs are properly worked and that the strap is supplied with compatible spring bars. An artisanal alligator or shell cordovan strap further elevates the constructive sobriety of the model.

A quality leather strap lasts on average 3-5 years under moderate daily use. Durability depends on external factors: humidity, sun exposure, frequency of wear, and tanning quality. Vegetable-tanned calf leather tends to crack earlier but develops attractive patina. Shell cordovan and alligator demonstrate greater resistance. Regular maintenance—light cleaning and occasional hydrophobic treatment—extends strap life and accelerates natural patina formation.