“The Calibre 613 is a lot like a toilet. It is a simple yet extremely well designed piece of engineering, that can take a mountain of shit yet just keeps working, day in, day out.” [..] Visit Omegas under $300 - The Geneve 136.0049 to read the full article.
Btw I should particularly thank @tdn-dk as several of the images come from him and his two excellent examples of this reference from this thread: https://omegaforums.net/threads/2020-what-omega-did-you-buy-for-under-500.115083/