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Seiko 3027-3MZ (Panasonic MT616 or MT516F with special connector)

Type: Battery / Capacitor. Voltage: 1.5 V. 

Diameter: 6.8 mm. Height: 1.6 mm.

Price: 29.99 each. 29.50 each if you buy two or more.

Also known as: Seiko 3027-3MZ, Panasonic MT616 ot MT516F with connector and includes a bracket/clamp, spacer and insulator.

These Seiko 3027-3MZ 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 MOVEMENT capacitor / battery for use in Seiko Kinetic watches.

Consisting of a Panasonic MT 616 or MT516F with special connector plates, this Seiko part 3027-3MZ is a replacement capacitor for the following Seiko watch movement calibres:

Seiko 3M21, 
Seiko 3M22, 
Seiko 3M42, 
Seiko 3M62, 
Seiko 3M21A, 
Seiko 3M22A, 
Seiko 3M42A, 
Seiko 3M62A, 
Seiko V10 

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


inscribed on the back. The calibre, 3M22, is highlighted.

These 3027-3MZ MT616 with tag are almost exclusively used in Seiko Kenetic electronic watches.

This 3027-3MZ MT616 with tag is the newer enhanced performance longer duration type and comes with Mylar insulator and  metal clamp.. If you are replacing the original version based on a SL621 cell you will need this product in order to replace your clamp. If you already have the enhanced performance MT616 version you can save a  little money by ordering this 3027-29N (which comes without a clamp). See here or use the 'Contact Us' link in the left hand frame for more details.

In the latest twist, Seiko have replaced the MT616 with the slightly small MT516F with a spacer. Everything you need (MT516F with connector with bracket/clamp, spacer and insulator) is included.

The Panasonic MT616 and MT516F 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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