Junghans
Max Bill 027/4700.00— lug 20mm

The Junghans Max Bill 027/4700.00 is fitted with 20-millimetre lugs. This is the standard width of the rigid end-link where the strap attaches to the case. Always verify direct measurement between the attachment points before ordering an aftermarket strap.

For the Max Bill 027/4700.00, we recommend natural alligator with vegetable tanning (cognac or black) for uncompromising elegance, or vegetable-tanned calf that ages beautifully. For versatility, a cordura NATO is practical and reversible. For sport use, satinised FKM rubber maintains stylistic coherence whilst preserving functionality.

The change is manual: you require a spring bar tool and two minutes. Identify the lateral apertures on the case—one per side—and gently insert the tool tip into the first aperture to disengage the internal elastic spring. Repeat on the opposite side. Position the new strap and re-insert the springs into their housings. Never force.

Yes, provided they respect the 20-millimetre lug width specification. Artisanal quality straps are not only compatible, but often enhance the aesthetic experience compared to original straps. Always verify the technical specifications of the product before purchase.

A quality leather strap (alligator or vegetable-tanned calf) lasts 3–5 years under normal wear with regular maintenance. Exposure to humidity, direct heat and chemical contaminants reduce longevity. Avoid wetting the strap during swimming or bathing. Vegetable-tanned leather can be regenerated with periodic applications of shea butter.