In brief
This is the best equipped of Omega's hand-wound calibres: 17 jewels, an eccentric regulator, and a date that advances straight from the crown. Quickset was an unusual thing to find on a manually wound movement of the period, and no other 6xx offered it.
Short history
The bridges, wheels and jewels are the 6xx inheritance from the automatic 5xx calibres, and the 613 shares them with every other movement in the series. What it added, arriving in 1967 with the family already well into its life, was the quickset date — a function none of its hand-wound siblings could manage. The whole series was discontinued in 1974, by which time quartz was beginning to take hold of the Swiss market.
Why it matters
It is the only hand-wound 6xx with a quickset date. Everywhere else in the range that convenience arrived only with the automatics, which is why collectors rate the 613 as the easiest of the family to wear day to day.
Watches that used it
- Omega Genève