Omega

One of my favorite watches is the Omega Speedmaster (both Pro and Pre-Pro models). And among Speedmasters, my favorites are the so-called "straight-lug" references, especially ref. 105.003. The nickname for this reference is the "Ed White" Speedmaster bec...  

Picture courtesy of Fratellowatches ...  

Reintitan, I will query my sources (wife just calling me downstairs to lunch) and local experts. I had (subject to research), as a dogma, that all 321 must have the non-flat chronograph hand and your post seems to break this. I will come back to this post... 

I'm curious to hear what the vintage Speedy experts have to say.

Reintitan, All sources that I accessed states that a ST 105.003 were released with a "drop" styled chronograph seconds hand. The squared end hand was introduced with the later 145.012 and standard on the 145.022. One reference even shows one 105.003 that ... 

Thanks for checking Nilomis. There are 3 differences on Gordon Cooper's watch compared to known 105.003: the flat chrono seconds hand, the bezel insert, and the pushers What I find strange is that *IF* NASA serviced the watch and replaced parts why would ...  

When and if this watch was serviced, that it was not a vintage one and someone may decided to "modernize" it. Cheers, Nilo