Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Regula 25 - 23.5 cm Time by Regula Sale $19.30 | / SKU 72-5751 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 Regula 25 -23.5 cm Time Clock Chain Wheel has a diameter of 33 mm. It is used for pendulums that have a length of 23.5 cm.