Junghans · Max Bill

Strap for Max Bill Chronoscope PVD

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
Reference027/7800.00
FamilyMax Bill
MovementJunghans caliber J880.2 hours, minutes, small seconds | date, day | Chronograph
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 027/7800.00

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Max Bill 027/7800.00, seen from the bench

The Junghans Max Bill 027/7800.00 embodies Bauhaus design principles with an asymmetric dial, decentered seconds at 6 o'clock, and minimal indices. The 40 mm stainless steel 316L case houses the manual Junghans caliber J880.2 movement, powering hours, minutes, small seconds, date, day of week, and chronograph function. Sapphire crystal, water-resistant to 50 meters, ensures daily wearability. The 20 mm lug width is the standard for this case size.

Frequently asked questions

What is the lug width of the Junghans Max Bill 027/7800.00?

The lug width of the Junghans Max Bill 027/7800.00 is 20 mm. To measure correctly, place a ruler between the inner lugs at the top and bottom attachment points of the case, perpendicular to the dial. This measurement is standard for 40 mm cases and ensures compatibility with all straps designated for 20 mm lug widths.

Which strap is recommended for the Max Bill 027/7800.00?

For the Max Bill 027/7800.00, we recommend straps in alligator with vegetable tanning, shell cordovan, cotton-nylon NATO, or FKM rubber. Choice depends on use: alligator for daily elegance, cordovan for aesthetic evolution over time, NATO for sporting practicality, rubber for environmental resistance. The strap should not compete visually with the Bauhaus design of the case.

How do I change the strap on the Junghans Max Bill 027/7800.00?

Changing the strap requires a spring bar tool: gently remove the pin connecting the strap to the case by working from below the lug. Extract the old strap and insert the new one, ensuring the pin is aligned and clicks securely at both ends. Never force the pin to avoid damaging the metal attachment points.

Can I use aftermarket straps compatible with the Junghans Max Bill 027/7800.00?

Yes, all aftermarket straps with a 20 mm lug width are compatible with the 027/7800.00. It is essential to verify the correct lug width measurement before purchase. Higher-quality straps with vegetable tanning or cordovan guarantee superior aesthetic longevity and material quality compared to standard options.

How long does a leather strap last on the Junghans Max Bill 027/7800.00?

A quality leather strap (alligator or cordovan) lasts 3-5 years with daily use and periodic maintenance. Durability depends on environmental humidity, frequency of use, and care: avoid prolonged water immersion and occasionally apply leather conditioner. Rubber straps last 4-6 years. Periodic strap changes are not deterioration, but an opportunity to refresh your Max Bill's style.

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