Omega Speedmaster - Why does this 861 Caliber has Golden coloured parts movement?

Sean Gonovan · Apr 22, 2022

Hi all,

and nice to meet you all. Caming here from the amazing website speedmaster101.com.

Trying to find the best speedmaster for me and wondering why does some 861 Caliber has Golden coloured parts movement? Souldnt be copper coloured?

140dave · Apr 22, 2022

There was a change of material for the movement around 1987, previous are copper after are a yellow "golden" color.

Edit to add: and welcome to the Forum!