I have a Bulova 11anacb (1970) 23 jewel auto wind in for repair. Is there a trick to setting the day/date function? There are only 2 positions on the stem. Not 3 as is usual for day/date setting??

SOURCE: Setting the darn thing

If you don't have the instruction manual you can go to this link and on the right side of the page you can type in the model number. (it will tell you where to locate the model number) I tried this for a Bulova from 1998 and it worked but I don't know how far it will go back but it's worth a try.
http://www.bulova.com/service/instructions.aspx

Arturs Kalnins

• 2338 Answers
• Posted on Dec 17, 2008

SOURCE: Helbros Invincible c.1970 wristwatch hairspring

Take a closer look at the movement, especially under the balance wheel (use an eyeglass). There should be movement code. By that you can find the real movement manufacturer and the hairspring or balance complete will be easier to trace.

SOURCE: How do I set the date on an old bulova caravelle men's watch

Pull the stem out 2 clicks the in 1 click turn stem clockwise for day and counter-clockwise for month. to set time pull stem out again 1 click, when finish push in 2 clicks

SOURCE: Day, date and time for a Bulova TFX watch

Step 1. When the second hand re a ches 12 o ’ clock (the zero or 60th second mark ) , pull the crown all the way to the “OUT ”position (you will hear two “ cl i ck s ” ) .All hands will stop.
 
Step 2. Turn the crown to move hands FORWARD (clockwise) until you see the date (for date only) or both day and date change.This establishes midnight, t h e b e ginning of the day.
 
Step 3. For A.M .time, continue to move hands forward until the minute hand is approxim a t e ly 5 minutes beyond the desired minute marker ;then ,gently turn b a ck to the same marke r. For P. M .time , follow the same procedure ,but first a dvance  the hands past 12 o’clock .
 
N O T E : The date will advance automatically at midnight, p rovided that A . M .a n d P. M .h ave been established (Steps 2 and 3).The watch calendar is pro grammed for a 31-day cycle.The  refore ,on the fi rst day of any month fo l l owing a month with fewer than 31 day s , the date must be advanced manually (see Step 5).
 
Step 4. When the time standard by which you are setting your wa t ch ( e.g.,telephone beep) re a ches the 60th second, push the crown all the way to the “ I N ”position . All hands will start instantly.
 
Step 5. Pull the crown to the “ I N T E R M E D I AT E ”position (one “ cl i ck ” ) . Your watch will continue to tell time. S l ow ly turn crown one way until the correct date a p p e a rs .Then for day/date models, s l ow ly turn crown the other way until the correct day appears .
 
N O T E : The day is printed in two successive positions on the day indicator: i n English and in Spanish on U. S .m o d e l s ; in English and in Fre n ch on Canadian mode l s It is possible to make use of either position. The display will automatically re m a i n in the language ch o s e n .
The date should never be ch a n ged manu a l ly between 9:00 P. M . and 3:00 A . M .a s this might affect the calendar mechanism and the accuracy of the date. ( Theme chanism will not be damaged if the crown is turned accidentally during this
time peri o d ,howeve r. )


Hope it helped U!

SOURCE: Bulova has mechanical day/date display near 3

I believe you are just outside your warranty. Its time to see a watch maker/technician about repairing the watch. Often times slowing is as easy to fix as lubricating the movement and forcing the gear train through the use of a cyclonic device. This fix takes minutes and is very cost effective. If the slowing is due t circuit board issues or a more sever gear train problem then the movement will need to be overhauled. I suggest comparing this cost to the cost of a replacement movement.