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Bulova 1973 Deep Sea Chronograph "B"

8/10 votes
Model ID rating explained.



Manufacture Year: 


Movement Model: 

Valjoux 7733

Movement Jewels: 


Movement Serial No.: 


Case Serial No.: 


Case shape: 




Additional Information

NEW OLD STOCK Bulova model 31003 - Deep Sea - Chronograph "B".  Period clam shell display case. Original tropic rubber strap. This watch is in perfect, like new condition.

Added 7/3/2012

Not For Sale
1973 Bulova Deep Sea Chronograph B 31003 Geoffrey baker 07032012
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Club 5000Panel Member
Posted July 4, 2012 - 7:12am

A $100, wow surely that was a bargin even back then!

Bob Bruno's picture
Bob Bruno
Club 5000
Posted July 4, 2012 - 1:20pm

According to the Bureau of labor statistics inflation calculator in 1973 $100.00 = $517.60 worth of buying power in 2012.

Geoff Baker
Club 5000Panel Member
Posted July 4, 2012 - 6:21pm

Gosh Bob, seems like I might have overpaid a bit......

a little bit though!

bobbee's picture
Posted July 4, 2012 - 6:03pm

Still worth it today, a very handsome watch.

Club 5000Panel Member
Posted July 5, 2012 - 3:17am

This and the Chrono 'C'.....what a pair. I wonder what the Chrono 'A' looks like. Now there's a set to have.

Interesting how the 'B' post dates the 'C'.

William Smith's picture
William Smith
Club 5000Panel Member
Posted July 5, 2012 - 3:17pm

Admin  If there is a unique model name, or unique model series name for the 666 ft Chrono's (as the hang tag suggests for subject watch -Bulova Deep Sea Chronograph B ) then it would be no surprise for a variant C in the generic Chrono (non-666 ft) to pre-date a B variant in another model series.

FifthAvenueRestorations's picture
Posted November 23, 2012 - 11:49am

I would think there is a Chrono 'A', 'B' and 'C' and a Deep Sea Chrono 'A', 'B' and 'C'.

The Case design being the differentiating factor or does the Chrono 'C' also have a Super Compressor type Dive Case depth rated to 666'?

William Smith's picture
William Smith
Club 5000Panel Member
Posted November 23, 2012 - 2:17pm

Easy one to find out.  The Brevet company sold the rights to use Super Compressor technology to about 23 different watch manufacturers, and the patent number(s) for use, usually accompanied by a little insignia, were somewhere on the watches which used one of the three technologies.

bobbee's picture
Posted September 7, 2014 - 3:39pm

The "Compressor" and "Super Compressor" were patents (brevets) of Ervin Piquerez Societé Anonyme (EPSA). The Divers helmet and patent numbers would be on the case back if they were of this type.

Posted January 30, 2019 - 10:45am

need advice ......  Bulova Deep Sea Chronograph " B "  ... how to safely remove bezel to  change the crystal for this model and how to re install bezel and new crystal .... i know it uses crystal 825AW