Watch Database

CRYSTAL GENERIC

For Seiko 4N21-0640

A/1820

Alternate: 657/AS 1361/270

Movement Listing

This part is also used by the following movements:

Movement	Description	Ligne
Bulova 11BSACB	21,600 BHP DSS AUT/DD-W/CORR:STEM MUST BE GENUINE	11.5
Seiko 6430-5080	SEIKO CASE REFERENCE

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