Seiko · 5 Sports

Strap for Seiko 5 Sports SRPD51K2

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter42 mm
ReferenceSRPD51K2
Family5 Sports
MovementSeiko caliber 4R36 Hours, Minutes, Seconds | Date, Day

Spring bar

Swiss Standard universal spring bars

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

Straps for the 5 Sports SRPD51K2

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The 5 Sports SRPD51K2, seen from the bench

The Seiko 5 Sports SRPD51K2 is powered by the automatic caliber 4R36 with hour, minute, second, date, and day of the week indications. The case measures 42mm in diameter and is made of stainless steel. The lugs accept 20mm width straps.

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