Cal. 661 1963 4 THE MOVEMENT AND AUTOMATIC ASSEMBLY The calibre is composed of the movement proper and an independent unit which includes the various parts of the automatic mechanism. A characteristic feature of the movement is that the crown wheel actuates the ratchet through the connecting wheels called: connecting wheel for

The Omega 661 watch movement, used from 1961 to 1973, features a ratcet wheel made from beryllium bronze and employs different rotor shapes. It is considered the smallest ever industrial manufactured automatic movement in terms of volume and demonstrates an efficient utilization of available space.

2021年3月1日 · In 1961 Omega released a new watch mechanism: Calibre 661. By the number of components per volume, it was the smallest ever industrial manufactured automatic movement in the world. To this day, this record is still unbeaten! The watch arrived in rather poor condition suffering both water damage, broken escape wheel and worn out auto rotor post.

2024年2月9日 · Here you can see information about the Omega 661 caliber from the manufacturer Omega. Open this page to view all information about the Omega 661 caliber.

Omega Listing: $502 Omega De Ville Automatic cal. 661 ref ST 151.0041 tank..., Steel; Automatic; Condition Fair; Year 1970; Location: Portugal, Lisboa

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2025年1月12日 · Find many great new & used options and get the best deals for 1969 Omega automatic ladies watch, cal. 661, 24 Jewels, 2 adjusted positions at the best online prices at eBay! Free shipping for many products!

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2025年1月13日 · Find many great new & used options and get the best deals for Vintage Omega DeVille Cal 661 Automatic Gold Brown Dial Women's Watch From JAPAN at the best online prices at eBay! Free shipping for many products!