Vintage Rotary Wristwatch Steel cal 670 17 Jewel Working Running Order

Vintage Rotary, cal 670. 17 jewel Swiss gents wristwatch. In working order.
Stainless steel watch with expanding bracelet, the springs in good condition.
We wound this watch and watched it for a few days, it kept time to half minute slow per day, We have not tried to adjust it.
Silver dial, gilt hands and red sweep seconds hand, the chapter ring divided into one fifth seconds.
The round case 31.5mm diameter, not counting the crown.
Width between the lugs is 16mm.
The movement marked 670. 17 Jewel. Swiss Made.

Our Ref is 5412,
In Good Condition,
All our jewellery has been cleaned and is ready to wear.

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