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Seiko 3027-29Y (Panasonic MT616 with special connector)

Type: Battery / Capacitor. Voltage: 1.5 V. 

Diameter: 6.8 mm. Height: 1.6 mm.

Price: 20.60 each.

Also known as: Seiko 3027-29Y, Panasonic MT616 with connector (but not with a bracket/clamp)

These Seiko 3027-29Y devices were originally not batteries at all, but miniature capacitors. More recently however, Seiko has upgraded their specification and replaced them with minute rechargeable batteries.

This is a genuine SEIKO KINETIC / SOLAR MOVEMENT capacitor / battery for use in Seiko Kinetic and Solar watches.

Consisting of a Panasonic MT 616 with special connector plates, this Seiko part 3027-29Y is a replacement capacitor for the following Seiko watch movement calibres:

Seiko V18 series, 
Seiko Solar V18 series, 
Seiko 5K25, 
Seiko V182A, 
Seiko Pulsar Solar V182-0C00, 
other Seiko calibres beginning with V18, 

The calibre is typically inscribed on the back of your watch. For example a watch might have........


inscribed on the back. The calibre, V182, is highlighted.

These 3027-29Y MT616 with tag are almost exclusively used in Seiko Kenetic and Solar electronic watches.

The Panasonic MT616 is a button-type titanium carbon lithium rechargeable Li-ion battery that uses lithium titanium oxide as the positive material, carbon as the negative material, and organic electrolyte.

If you don't find the movement calibre you are looking for, contact us by email. Use the 'Contact Us' link in the left hand frame.

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