My dad bought this watch for my brother as a gift in 1970.

Serial No. 1875419

Features:
• Plaque G 20 SAD
• Movement: Automatic
• Case: Stainless steel, 34.5mm diameter, 10.5mm thickness
• 14K yellow gold bezel and lug caps
• Dial: Gold batons and markers
• Band: 18mm aftermarket black leather strap
• Buckle: Yellow gold plated

My questions:
1. Does anyone know what caliber it is or do I have to have a watch maker open it and look inside?
2. Do you get to the inside of the watch from the front or the back?
3. Does anyone have more information about this model beside what I included above?
4. What is the average and maximum online selling price of this watch in the condition that this one is in? Is $450 a realistic number?

Thank you for your time and assistance.

- yahamshari

 

Rich,

This Zodiac look very similar to my Omega Seamaster. Are these two companies related?!! Also, do you have any information about this model that perhaps I did not include in my initial post?

Thanks.

- yahamshari

 

I'm still no expert on anything but I have watched the Zodiac forum after getting my triple date (which I love). From what I've seen the band alone would make that a desirable watch. Original bands are fairly rare.

All the information available on the net can be found here.

http://www.vintagezodiacs.com/

Prices are rising on the Zodiac's.