Seiko Instruments offers a line of power and battery products, including their MS920SE Series of products. This can be confusing, as “MS920SE” refers to both a specific part number within the series and the series itself. We’ve gotten a number of questions looking for the version of this product that comes with solder tabs; is there one?
“MS920SE” is the part number for the ‘naked’ version of this battery, with no solder tabs. The same battery with solder tabs would be Seiko part number MS920SE-FL27E, which is also easily available through DigiKey.