Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Hermle Flat Clock Chain Ring by PERRIN Sale $7.61 | / SKU 72-568-03 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Hermle Flat Clock Chain Ring package of 3 genuine Hermle - FHS Flat Clock Chain Rings.