1963 M3 stamped on movement 11AFC Round Case 40mic Gold Plate Signed between lugs followed by a diamond shaped marker with two indistinguishable markings within BULOVA signed crown What appears to be the original bracelet ( JB inside a triangle US Standard stamped on the inside of the Bracelet I think that it is possibly a Sea King but cant find reference in the database.
One of the features in the Sea King line was a luminous dial and hands. Your watch doesn't appear to be luminous? The watch does have an International flair or look about it, and there does not appear to be an import code on the movement.
Can you tell us if there is an import code, would likely be BXW?
Also, is there a code stamped or engraved on the inside of the caseback?
I could not find this case or design in the ads, leaning towards Unknown model name at this time.The band looks period, and may very well be original.
Nice and unique case detail. Do you have the jewel count? I can't make it out in the photo.
17 Jewels
In reply to 17 Jewels by Paul Clegg
Thank you, I will update that detail.
Te only engraving on the inside of the case back is :
Stainless Steel Back
Bezel Gold plated G
40 Microns
AM In Diamond Shape
33927 710 LD 39
M0
There is also the Number 64 on the movement
No the watch is not luminous
AM is probably Arthur Miserez, of Saignelégier, Switzerland.
Updated the watch to 1960 based on the 'M0' date stamp on the case.
Cannot find any match. Looks to be an international model.
Unknown for me for now.
Sea King may still be an option. The "I" variant looks close.

Can you please confirm the M0 stamp is not a M8 stamp.