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Bulova 1974 Computron

4/10 votes
Model ID rating explained.

Manufacture Year: 


Movement Model: 


Movement Serial No.: 


Case Serial No.: 


Case shape: 


Case Manufacturer: 


Crystal Details: 




Additional Information

Greetings Great Keepers of Time, I recently purchased this Bulova that I believe is called the "Big Block". Actually this is the second one that I have because while taking it apart I managed to break the adjustment plate off of the movement on the first one. I was so heart broken but luckily I came across another that I was able to purchase. I have not, for obvious reasons, tried to take this one apart but I am becoming frustrated with the inability to get the stem and plates to align correctly so that I can set and maintain the correct time as well as the rest of the functions working properly. It will show the red led light when the stem is actuated but the numbers just flash across the face which tells me that it works, but not like it should. I am not certain that I was correct with the movement information so please correct me if I am wrong. I would greatly appreciate any feedback or guidance from you on what to do to correctly repair this watch. I believe that of all my Bulovas, I do like this one the best but have yet had the opportunity to show it off to others. Again and as always, your knowledge is greatly appreciated and I look forward to hearing from you.

Not For Sale
Bulova watch
Bulova watch
Bulova watch
Bulova Watch
Panel Member
Posted February 7, 2013 - 7:22pm

You may want to look into the battery specs on this. It may just be a supply voltage/current issue from batteries that don't match the original specs. I've had this be an issue with some older Hamilton Electrics as well as a few Accutrons.

billygreeneyes's picture
Posted February 7, 2013 - 9:01pm

Hello Great One, I will give it a try as the back case does identify the proper batteries to use. The batteries that are currently with it are size AG13. I will definitely try different batteries and see if that works. Thank you again for all of your help... Billy

Club 5000Panel Member
Posted February 9, 2013 - 4:21am

Bulova Quartz Digital, model unknown at this stage.

bobbee's picture
Posted February 9, 2013 - 5:27am

All digitals by Bulova were called Computrons.

Club 5000Panel Member
Posted February 9, 2013 - 5:41am

Whats the year of the advert? This may be a factor in what they were called.

William Smith's picture
William Smith
Club 5000Panel Member
Posted February 14, 2013 - 1:10am

Based on the graphic file name, the ad is from December 1976.

I'm good with Computron, but would give two ticks....

Geoff Baker
Club 5000Panel Member
Posted February 14, 2013 - 10:30pm

See, I had this 'they were all called Computrons, weren't they?" though in my head when I first saw the watch.

I'll go with it - Computron

Club 5000Panel Member
Posted February 17, 2013 - 12:04am

Tentative Computron

malpasoman's picture
Posted February 17, 2013 - 8:16am


bobbee's picture
Posted February 17, 2013 - 9:09am

Accuquartz uses tuning fork technology buddy, these do not.