![Weight Core 245mm Light (10593240207)](http://perrinwatchparts.com/cdn/shop/products/79.664-600_600x600.jpg?v=1595351895)
Weight Core 2,500 grams 60 x 245 mm weighs 2,500 grams and measures 60 mm in diameter by 245 mm in length. Weight Core 245 mm fits weight shell number 79-652. Used for FHS 461 Chain movement for time and strike. Used for 1161 Chain movement for time and strike.