Seiko 4J40 Parts - Genuine OEM Watch Parts

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SEIKO 240A02SB0C Sapphire Crystal SWDL149 - 4J40-0AF0

SEIKO 240A02SB0C Sapphire Crystal SWDL149 - 4J40-0AF0

$106.00

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SEIKO 290P92SB0B Sapphire Crystal SACK030 - 4J40-0AG0

SEIKO 290P92SB0B Sapphire Crystal SACK030 - 4J40-0AG0

$179.00

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Seiko SZRS003 watch 4J40-HAD0

Seiko SZRS003 Watch & Parts | 4J40-HAD0 | 18K yellow gold, White Dial

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Seiko SZRS002 watch 4J40-HAD0

Seiko SZRS002 Watch & Parts | 4J40-HAD0 | 18K yellow gold, White Dial

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Genuine Seiko 4J40 Parts

Original Seiko replacement parts for watches with calibre 4J40.

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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See the full Seiko parts catalogue.

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

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

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