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Pinion · Pure

Strap for Pure GG

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

22mm
22 mm strapsAll Pinion
Lug width22 mm
Case diameter42 mm
ReferencePU21
FamilyPure
MovementETA caliber 6498-1 hours, minutes, small seconds
Year2016
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

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Straps for the Pure PU21

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Pure PU21, seen from the bench

The Pinion Pure reference PU21 features the manual-winding ETA 6498-1 caliber with hour, minute and small seconds indications. The movement offers a classic configuration with a sub-seconds display. 22mm lugs for the strap.

Frequently asked questions

What is the correct lug width for the Pinion Pure PU21?

The Pinion Pure PU21 requires a <a href="https://milanostraps.it/pages/termine-glossario/misura-ansa">lug width</a> of 22mm. To verify compatibility, measure the internal distance between the two lugs that attach the strap to the case. This measurement is standard for 42mm diameter cases with classical proportions.

Which strap material pairs best with the Pinion Pure PU21?

For the PU21, we recommend a strap in natural <a href="https://milanostraps.it/pages/termine-glossario/alligatore">alligator leather</a> or vegetable-tanned calf with <a href="https://milanostraps.it/pages/termine-glossario/concia-vegetale">vegetable tanning</a>. Alligator enhances the watch's minimalist geometry through its regular grain; vegetable-tanned calf ages beautifully, developing natural patina over years. Both maintain the aesthetic and technical balance of the timepiece.

How do I change the strap on my Pinion Pure PU21?

Use a spring bar removal tool to extract the lugs from their seats. Position the tool along the lug until you hear a click indicating release. Insert the new lugs into the strap without forcing: the fit must be fluid. A strap fitted with a <a href="https://milanostraps.it/pages/termine-glossario/deployante">deployante</a> allows rapid changes without tools.

Can I use an aftermarket strap from another brand with the Pinion Pure PU21?

Technically yes, provided the <a href="https://milanostraps.it/pages/termine-glossario/misura-ansa">lug width</a> is 22mm and thickness does not exceed 3.5mm. However, the depth of the PU21's lug slots requires robust and precise construction. We recommend Italian artisanal straps made with <a href="https://milanostraps.it/pages/termine-glossario/concia-vegetale">vegetable tanning</a> to ensure mechanical compatibility and longevity.

How long does a leather strap last on the Pinion Pure PU21?

A high-quality vegetable-tanned leather strap typically lasts 5-7 years with moderate daily use. Longevity depends on the <a href="https://milanostraps.it/pages/termine-glossario/concia-vegetale">vegetable tanning</a> type, sun exposure, humidity, and your maintenance habits. Prolonged water exposure accelerates natural ageing. Regular maintenance with leather-specific creams significantly extends lifespan.

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