Seiko S521 Parts - Genuine OEM Watch Parts

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Seiko SRC400G watch S521-4000

Seiko SRC400G Watch & Parts | S521-4000

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Seiko SRC400K watch S521-4000

Seiko SRC400K Watch & Parts | S521-4000

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Genuine Seiko S521 Parts

Original Seiko replacement parts for watches with calibre S521.

Find the right part

Check the case number on the back of your watch and search for it in our shop.
Not sure where to look? Read how to find the model or case number of your watch.
Every product page lists the case numbers and calibres the part is made for.

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Dials · Hands · Crystals · Bezels · Gaskets · Movement parts

See the full Seiko parts catalogue.

100% High Quality

We source original watches and compatible watch parts through established supply channels and trusted manufacturers.

1+ Year Warranty on All Products

Warranty applies as described in our warranty policy. Brand warranty terms and service conditions may differ by product type.

Worldwide Fast Shipping

We deliver our products globally, including to the EU, USA, UK, Canada, Australia, and many more countries, with care and reliability.

Specialist in Watches, Straps, Parts and Accessories

WatchPlaza specializes in watches, watch straps, parts and accessories for a wide range of brands and references.