Founded in 1961 by pilot Helmut Sinn, the Sinn brand is based on the excellent quality of watches it produces. The brand was founded in Frankfurt, Germany and is based around a number of attributes built into its line-up. Over the years they have built a reputation for excellence, with beautiful watches which have been expertly crafted. The attributes you can find in Sinn are - impeccable German aesthetics, solid build quality and impressive innovation. Sinn offers a variety of replacement straps for every taste, style and purpose. 

Model Specifications BK75202092501100943A:

• This strap is designed for the Sinn 556 models only. 
• The strap is made from black silicone and it integrates into the case. 
• The strap fastens with a folding clasp with strap-length quick adjustment.