Size: 7/16-inch width (a little less than ½ inch), by 1-11/16 inch total length (a little less than 1-3/4 inches). Compare photo with UW-Small.

A large sized suspension spring for German-made, chain-wound and cable-wound, Urgos ("UW") mechanisms (movements) in modern (made after 1960) grandfather and grandmother clocks.

It is a unique spring design that only fits clocks with mechanisms by Urgos, made mostly during the 1980s, including clocks by Howard Miller; Ridgeway; Ethan Allen; Sligh; Trend; New England Clock Company (Co.); Seth Thomas; Wuersch; Mason & Sullivan; and others.

Fits popular Urgos 030-series, 031-series, and 660-series mechanisms, including: UW 03020, UW 03021, UW 03106, UW 03109, UW 66002, UW 66015, UW 66020, etc. (In general, any Urgos "UW" mechanism that begins with UW 030, 031, or 660 and then 2 more numbers, will take this suspension spring). Example: UW 03114 (this is UW "031", and then "14").

Size: 5/16-inch width (a little more than ¼ inch), by 1-1/8 inch total length.  Compare photo with UW-Large.

A small sized suspension spring for German-made, chain-wound, Urgos ("UW") mechanisms (movements) in modern (made after 1960) grandfather and grandmother clocks.

It is a unique spring design that only fits clocks with mechanisms by Urgos, made mostly during the 1980s, including clocks by Howard Miller; Ridgeway; Ethan Allen; Sligh; Trend; New England Clock Company (Co.); Seth Thomas; Wuersch; Mason & Sullivan; and others.

Fits popular Urgos 32-series mechanisms, including: UW 32001, UW 32002, etc. (In general, any Urgos UW mechanism that begins with "UW 32" and then 3 more numbers, will take this suspension spring). Example: UW 32166 (this is UW "32", and then "166"). Also, fits mechanisms numbered with a "UW 32" and then a "slash", such as: UW 32/9; UW 32/57; UW 32/61, etc.

Size: 15/32-inch width (a little less than ½ inch), by 1-inch total length. Compare photo with HM-Small.

A large sized suspension spring for most cable-wound and some chain-wound mechanisms (movements) in modern (made after 1960) grandfather clocks.

Fits clocks with German-made mechanisms by Hermle Black Forest; Franz Hermle & Sons; and Kieninger, including: Howard Miller; Ridgeway; Ethan Allen; Sligh; Trend; Tradition; Heritage Heirloom; Baldwin; New England Clock Company (Co.); Seth Thomas; Wuersch; Mason & Sullivan; Hermle Black Forest; King Arthur; Cuckoo Clock Manufacturing (Mfg.) Company (Co.); Harris and Mallow, and others.

Fits popular Franz Hermle (FHS) mechanisms:  1161-853; 1161-850; and all mechanisms beginning with numbers 1161, 1171, and 2061. Fits most Kieninger chain-wound and cable-wound movements. Fits Howard Miller cable-wound grandfather clocks by Kieninger, including K series, KS series, and MS series. Fits Howard Miller chain-wound SKS 12 and SKS 13 Kieninger mechanism. Also fits other manufacturers, including some Mauthe, Jauch, and others; please inquire.

Size: 5/16-inch width (a little more than ¼ inch), by 5/8-inch total length. Compare photo with HM-Large.

A small sized suspension spring for German-made chain-wound and spring-wound mechanisms (movements) in modern (made after 1960) grandfather, grandmother, mantel, and wall clocks.

Fits clocks with mechanisms by Hermle Black Forest; Franz Hermle & Sons; and Urgos, including: Howard Miller; Ridgeway; Ethan Allen; Sligh; Trend; Tradition; Heritage Heirloom; Baldwin; W. Haid; New England Clock Company (Co.); Seth Thomas; Wuersch; Mason & Sullivan; King Arthur; Cuckoo Clock Manufacturing (Mfg.) Company (Co.); Harris and Mallow, and others.

Fits popular Franz Hermle (FHS) mechanisms: 341-020, 341-021, 351-020; 1051-020; 451-050; 451-053; 1151-050; 1151-053; and all mechanisms beginning with numbers 141, 241, 261, 341, 351, 451, 1051, and 1151. Also fits other manufacturers, including some Mauthe, Jauch, and others; please inquire.