• Trademark  Double End Clock Key

Seth Thomas Double End Key

Choose from 2 sizes. Made of brass. Please measure the width of your winding post on your clock, in millimeters, to insure you select the correct size.

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$4.75

SKU: N/A

Choose from 2 sizes. Made of brass. Please measure the width of your winding post on your clock, in millimeters, to insure you select the correct size.

Key Sizing Chart

Key No.American SizesSwiss SizesWatch Sizes
#000001.6mm1.25mm
#00001.8mm1.50mm
#0002.0mm1.75mm
#002.2mm2.00mm2.00mm
#02.4mm2.25mm1.90mm
#12.6mm2.50mm1.80mm
#22.8mm2.75mm1.75mm
#33.0mm3.00mm1.65mm
#43.2mm3.25mm1.60mm
#53.4mm3.50mm1.50mm
#63.6mm3.75mm1.40mm
#73.8mm4.00mm1.30mm
#84.0mm4.25mm1.20mm
#94.2mm4.50mm1.15mm
#104.4mm4.75mm1.05mm
#114.6mm5.00mm1.00mm
#124.8mm5.25mm.95mm
#135.0mm5.50mm
#145.2mm5.75mm
#155.4mm6.00mm
#165.6mm6.25mm
#175.8mm6.50mm
#186.0mm6.75mm
#196.2mm7.00mm
#206.4mm7.25mm
#216.6mm7.50mm
#226.8mm7.75mm
#237.0mm8.00mm
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