Zeitwinkel · 39mm Midsize

Strap for 083° Silver

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
Reference083° Silver
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 083° Silver

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The 39mm Midsize 083° Silver, seen from the bench

The Zeitwinkel 39mm Midsize reference 083° Silver is equipped with the ZW0102 CS caliber featuring hours, minutes, seconds and date indication. The case has a diameter of 39mm with 18mm lugs. The movement offers the essential time reading functions with a date complication.

Frequently asked questions

What is the lug width of the Zeitwinkel 39mm Midsize 083° Silver?

The Zeitwinkel 083° Silver features an 18-millimetre lug width, a specific measurement reflecting the proportional construction of the 39mm case. To verify strap compatibility, measure the distance between the spring bar pins at case lug level: the measurement must be exactly 18mm.

Which strap material pairs best with the 083° Silver?

For the silver dial and satin-brushed steel, we recommend black or dark brown alligator for formal contexts, or natural-toned calf grain for versatility. A vegetable-tanned leather strap develops authentic patina over time. For sports use, grey or black rubber, or cotton NATO keeps the case's minimalist aesthetics intact.

How do you change the strap on a 39mm Zeitwinkel?

Remove the watch from your wrist. Position the case on a soft cloth with lugs facing upward. Use a spring bar tool to gently push the elastic pin inward, creating space to remove the strap. Repeat on the other lug. Install the new 18mm strap in reverse: insert the pin and allow the elastic spring to secure it firmly.

Is an 18mm aftermarket strap compatible with the Zeitwinkel 083° Silver?

Yes, any strap with certified 18mm lug width is compatible. Always verify the supplier explicitly lists lug width: deviations of 0.5mm compromise fitting. We recommend straps 3.5 to 4.5mm thick to maintain correct visual proportions relative to the 39mm case.

How long does a leather strap last on this type of watch?

A quality alligator or calf strap, with regular maintenance, lasts 3-5 years. A vegetable-tanned strap lasts 2-3 years but develops fascinating patina. NATO and rubber straps have durability of 5-7 years with minimal aesthetic degradation. Frequency of use, sweat exposure, and humidity accelerate natural leather ageing.

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