Strap for Pilot's Watch 856

The lug width of the Sinn 856.011 is 20 millimetres. This measurement refers to the internal distance between the two metal lugs of the case where the strap is attached. To verify this, use a digital calliper to measure the internal space between the two attachment pins: it should be exactly 20mm.

The ideal strap depends on your intended use. For a formal-sporting profile, we recommend an alligator strap with vegetable tanning, dark brown, thickness 1.8-2mm. For daily versatility, a polyamide NATO in black or anthracite grey is unbeatable. For technical and extreme sporting contexts, a vulcanised rubber strap with micro-texture offers decade-long resistance and superior ergonomics.

Insert the springbar tool into the gap between the case and strap, pushing downward to compress the internal spring of the pin. Apply gentle leverage until the pin comes out of its seat. Repeat on both sides. Align the new strap's holes with the pins, then reinsert the springbars symmetrically to avoid case distortion.

Yes, any strap with a 20mm lug width is compatible with the Sinn 856.011. Milanostraps.it offers a selection of artisanal straps in leather, NATO and rubber specifically calibrated for this measurement. Always verify the lug width before purchasing to avoid lateral play or misalignment.

A quality leather strap (alligator or vegetable-tanned calf) maintains optimal functionality for 3-5 years with regular use and routine maintenance. Durability depends on ambient humidity, cleaning frequency and sun exposure levels. With periodic treatments using natural oils (mink oil, neatsfoot oil), you can extend service life to 7 years.