Junghans · Form
Strap for Form A Stainless Steel / White Arabic / Black Calf
Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Form 027/4731.00
Selected for the 18 mm lug width · workshop selection
Grey Hammered Leather Strap with Ecru Stitching€98
Pink Saffiano Strap€90
Violet Nappa Italian Leather Strap€80
Red Hammered Calfskin Single Pass Watch Strap€80
Millenium Cognac Alligator Strap€195
The Form 027/4731.00, seen from the bench
Frequently asked questions
What is the lug width of the Junghans Form 027/4731.00?
The Junghans Form 027/4731.00 features an 18 mm lug width. This measurement is crucial for aftermarket strap compatibility: any chosen strap must have an 18 mm width at its extremities to ensure perfect fitting without forcing or damage.
Which strap would you recommend for the Form 027/4731.00?
For the Form 027/4731.00, we recommend straps in noble materials that respect the minimalist Bauhaus design language. A black alligator strap with hand-stitched saddle seams is the most formal choice; a vegetable-tanned calf leather in brown or cognac tones introduces natural warmth; a grey NATO strap offers daily versatility. The choice depends on context and personal aesthetic preference.
How do I change the strap on the Junghans Form 027/4731.00?
The strap is replaced via the spring bar attachments located at the lug extremities. Using a dedicated spring bar tool or small flathead screwdriver, remove the elastic pin from the attachment, extract the original strap, and insert the new one, securing the pin again. The operation requires care to avoid damaging the case or lugs.
Can I fit an aftermarket 18mm strap on the Form 027/4731.00?
Absolutely. Any strap manufactured with an 18 mm width at its extremities is compatible with the Form 027/4731.00. We recommend selecting watch-quality straps from specialized craftsmen to ensure durability and wearing comfort equivalent to the original strap.
How long does a natural leather strap last on a Junghans Form 027/4731.00?
A quality leather strap, especially one crafted with vegetable tanning techniques, typically lasts 3-5 years with proper daily use. Lifespan depends on factors such as sun exposure, humidity, cleaning frequency, and tanning method. Leather straps naturally develop a patina that enhances their aesthetic appeal over time.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
