Strap for Max Bill Automatic PVD

The Junghans Max Bill 027/7700.00 features a lug width of exactly 20 millimetres. This measurement is critical for strap compatibility and is calculated by measuring the internal distance between the two lower lugs of the case. The 20mm dimension is specific to this reference and cannot be interchanged with the more common 18mm or 22mm widths found elsewhere.

The optimal strap depends entirely on intended use and context. For formal occasions, we recommend a black alligator strap with vegetable tanning, which amplifies the geometric purity of the white dial. For daily wear, a medium brown vegetable-tanned calf develops natural patina whilst maintaining Bauhaus austerity. NATO straps in heavyweight grey cotton offer a legitimate sportive alternative—geometrically neutral and versatile across multiple settings.

The procedure is straightforward: position the watch face-down on a soft cushion. Using a spring bar tool (strap removal pin), gently depress the small metal peg positioned beneath the lug you wish to remove, creating minimal clearance between lug and case horn. The strap casing slides out with ease. Repeat on the opposite side, then insert your new strap by sliding the spring bar into the lateral grooves until fully secured.

Absolutely. Any quality aftermarket strap with a 20mm casing is fully compatible with the 027/7700.00. Always verify lug width before purchase. Our artisanal leather, rubber and textile straps are engineered for robustness and geometric precision, guaranteeing smooth insertion with zero detachment during daily wear.

A quality leather strap, subjected to moderate use (five to six days weekly), maintains structural integrity for three to five years. Vegetable-tanned leather ages consciously, developing patina and subtle coloration shifts that testify to passage of time. The casing—the section inserted into the lugs—represents the critical wear zone: mechanical fibre degradation requires periodic monitoring. Our straps utilise thick hide (1.4–1.6mm) specifically to extend longevity and performance.