Comments:
This XR9527W is an unusual rechargeable cell that is typically found in watches. The XR9527W is suitable for devices such as the Seiko Solar LCD watches.

Typically this XR9527W will last seven years before requiring replacement.

The silver oxide equivalent disposable battery, the SR927SW or 399 cell, or the low drain 395, are the same size, but can NOT be substituted for this XR9527W.

The XR9527W we supply is the genuine Seiko spare part. The battery itself is inscribed....

"Maxell, XR9527W, Rechargeable, +, Hitachi Maxell Ltd, Japan"

The XR9527W is used in watches with a movement of calibre A258 or A258A or A628 or A628A. It comes as a bare cell without clips or tags.