F300Hz hummers

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Stem at 2 o'clock version doesn't has the seamonster on the back, the 3'o clock version has, usually. Note how the omega symbol could either replace the 12 o'clock marker or be placed under it, even on the same reference (2 o'clock only).

Some of the earlier versions of other references, like the 198.001, first came with plain backs and no the "Seamaster" in the dial, while later versions had the text and with and without the plain back. The F300's often has dial variations between the same reference depending on when it was made.
 
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This is my f300 cone 2 a clock with blank caseback. Sorry for the DNA . Use this a lot.
 
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Is this correct for the case back?
......I'd be keen to get my hands on a whit dial ed.
 
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Is this correct for the case back?
......I'd be keen to get my hands on a whit dial ed.
Yes some early ones had those and some the smoothback. (See my earlier post)
 
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New arrival. A 38 years old Speedsonic says hi, while awaiting a new crystal.
 
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Though this 1970s Seamaster 120m early quartz cannot be called a hummer, I would like to share it cuz of it's beauty in NOS condition.
Hope you won't mind I put it under this thread.
Thanks & Cheers,


 
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+1 in silver dial
Enjoy.....

They might not hum but they look interesting!!
those bezels look like the inspiration for the early planet oceans
 
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They might not hum but they look interesting!!
those bezels look like the inspiration for the early planet oceans
I would think the original 1957 ck2913 SM 300 was the thinking behind that. The Pre-Bonds which came after those shown here had the inner metal bezel ring too.
 
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Recently Ive had a "thing" for hummers myself. That have resulted in Omegas, Bulovas and a couple IWCs 😀

 
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Pretty awesome! That dial furniture looks it was sourced from Costco! 😝