Zeitwinkel · 39mm Midsize

Strap for 082° Blue

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

Lug width18 mm
Case diameter39 mm
Reference082° Blue
Family39mm Midsize
MovementZeitwinkel caliber ZW0102 CS Hours, Minutes, Seconds | Date
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 39mm Midsize 082° Blue

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The 39mm Midsize 082° Blue, seen from the bench

The Zeitwinkel 39mm Midsize reference 082° Blue is powered by the automatic caliber ZW0102 CS with hour, minute, second and date indication. The case has a diameter of 39mm with 18mm lugs. The in-house Zeitwinkel movement offers the essential watchmaking functions with Swiss construction.

Frequently asked questions

What is the lug width of the Zeitwinkel 39mm Midsize 082° Blue?

The Zeitwinkel 082° Blue 39mm Midsize features an 18mm lug width. This measurement is critical for aftermarket strap compatibility. To verify it, measure the distance between the inner spring bars using a digital calliper—it must be exactly 18mm. This specification is essential to ensure correct and secure strap installation.

Which strap should I choose for the Zeitwinkel 082° Blue?

Your choice depends on intended use and aesthetic preference. For formal wear consistent with minimalist design, we recommend natural leather with vegetable tanning in dark brown or black tones. For daily versatility, a grey or navy NATO strap allows the blue dial to remain the focal point. For sports contexts, an FKM rubber strap maintains aesthetic clarity and functionality. All straps must feature the 18mm lug width.

How do I change the strap on my Zeitwinkel 39mm Midsize?

You will need a spring bar tool to change the strap. Place the watch on a soft surface. Using the spring bar tool, gently push inward one of the spring bars from the outside, removing it from the original strap. Repeat for the second bar. Insert both bars into the new 18mm strap, aligning the ends correctly, and ensure both are fully seated. If uncertain, consult a professional: Atelier Casati Milano offers strap-change services by appointment.

Can I use aftermarket straps on a Zeitwinkel 082° Blue?

Yes, provided they feature the 18mm lug width. Quality aftermarket straps can replace or supplement the original strap, allowing you to personalise the watch according to context and preference. Milano Straps offers a selection of artisanal straps verified for this lug width, crafted from natural materials and finished to respect the minimalist identity of the 082° Blue.

How long does a leather strap last on the Zeitwinkel 082° Blue?

Leather strap durability depends on material quality, tanning method, and usage intensity. A vegetable-tanned calf leather strap, worn daily, has an average lifespan of 3-5 years before replacement is needed. It will develop natural patina and visible aging marks, which many collectors appreciate as a characteristic. Premium leather like shell cordovan can last 7-10 years or longer. Protecting the strap from excess moisture and occasionally applying natural balm will significantly extend its life.

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