Panerai · Radiomir

Strap for Radiomir Base Ceramica Hobnail

Takes 27 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width27 mm
Case diameter45 mm
ReferencePAM00643 (aka: PAM643, PAM 643)
FamilyRadiomir
MovementPanerai caliber OP X hours, minutes
Year2015
CaseCeramic, Stainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Radiomir PAM00643 (aka: PAM643, PAM 643), seen from the bench

The Panerai Radiomir PAM00643 is a 45mm black ceramic case watch embodying military instrumental design principles from the 1930s. It features the manual-wind Panerai OP X calibre, a cream sandwich dial, and a threaded onion crown. The case combines ceramic and stainless steel, achieving both lightness and structural rigidity, while the fixed ceramic bezel resists scratching. Water-resistant to 300 metres, this model represents the Radiomir collection's "basic and essential" philosophy without superfluous decoration. The watch lug width is exactly 27mm.

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