Bulova Marine star 98B104 stops working when not been worn. Battery has been changed in the last few months.

SOURCE: bulova marine star 96B01 japan movement

Go to "boluva.com", select your area.

Click on one of the pictures and enter your watch style in the search box (try 96D09).

When the details appear click on "instructions".

SOURCE: I need a manual to operate a bulova 98G70

Copy "http://www.bulova.com/brands/bulova/bulova.aspx?brand=bulova#coll_id=30&coll_name=Marine%20Star&gender=1" into your search engine and you should arrive at the Boluva web site page listing Marine Star models.

I couldn't find your particular model but perhaps one of those listed is similar to yours.

SOURCE: I need the watch band for bulova marine star 98c69

if you want a original you need the serial number of the back...try bulovas website or ebay worldwide...from the picture it looks like you will need a original as it looks like its integral to the watch case so prob bulova only try them direct before going to a jewelers or watch repair company...

SOURCE: need operators manual for a bulova marine star

While I can find "Marine Star" in the list of models, I could not find one with the same refernce number.

There are a number of models so if you go to http://www.bulova.com/brands/bulova/bulova.aspx?brand=bulova#coll_id=30&coll_name=Marine%20Star&gender=1 ", you may be able to find one that looks like yours.

If you click on a watch, details appear and these include operating instructions.

SOURCE: I NEED MANUAL INSTRUCTION

You can find it here:
http://www.manualsonline.com/manuals/mfg/bulova/bulova_watch_product_list.html
or you can have a familiar manual from Citizen watches' website (technically almost the same. Citizen owns Bulova now)