Junghans · Max Bill

Strap for Max Bill Hand-Winding PVD

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter34 mm
Reference027/5703.00
FamilyMax Bill
MovementJunghans caliber J805.1 Hours, Minutes, Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Max Bill 027/5703.00

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Max Bill 027/5703.00, seen from the bench

The Max Bill Hand-Winding PVD, reference 027/5703.00, embodies the rigorous philosophy of architect and Bauhaus master Max Bill delivered to Junghans in 1962. The 34 mm brushed stainless steel case features a minimalist dial with conical steel hands and DIN indices, housing the automatic Junghans J805.1 caliber with 28,800 vph. At 7.9 mm thick, the watch represents purposeful proportions without ornament. The 18 mm lug width is a deliberate choice reflecting Max Bill's design grammar, ensuring visual balance on the wrist.

Frequently asked questions

What is the lug width of the Junghans Max Bill 027/5703.00?

The lug width is 18 millimetres, an uncommon specification that defines this model. It is measured as the internal distance between the two lateral pins of the case. This dimension is intentional, designed by Max Bill to maintain visual balance on a 34mm case according to Bauhaus proportion principles.

Which strap material is most suitable for the Max Bill 027/5703.00?

Brown alligator or vegetable-tanned calf leather are the most appropriate choices, preserving the rationalist aesthetic of the case. For daily sports use, nylon NATO straps are practical; rubber is ideal for those using the watch as an actual tool. All must be 18mm lug width compatible.

How do you change the strap on a Junghans Max Bill?

Using a spring bar tool that allows you to retract the lateral lug pins. The procedure requires care to avoid scratching the case. We recommend having the operation performed by a qualified watchmaker or consulting video tutorials. The 18mm lug width compatibility must be verified before purchasing a new strap.

Are aftermarket straps compatible with the 027/5703.00?

Yes, provided they have the correct 18mm lug width. Not all universal straps are dimensioned for this specification: always verify before purchase. Milano Straps handcrafted straps are built to measure and guarantee total compatibility with the Max Bill, preserving original aesthetics.

How long does a natural leather strap last on a daily-worn watch?

A high-quality leather strap (alligator, vegetable-tanned calf) typically lasts 3-5 years with intense daily wear. Longevity depends on humidity, sun exposure, and cleaning frequency. Vegetable-tanned straps develop natural patina and age elegantly, extending perceived value over time. Rubber and NATO straps have greater durability, lasting 7-10 years.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only