Genuine Omega® sliding gear mounted, part number 1725, fits Omega® 27 CHRO, Omega® 27 CHRO C12, Omega® 27 CHRO PC AM, Omega® 320, Omega® 321 cuckoo escape wheels diameter of the shoulder 1

diameter of the shoulder 1

Catgut 2 mm is 2 mm in diameter and has 2 coils that measure a length of 3

and drilling

19 x 445 (17 1/2")

Jaeger LeCoultre® screw for intermediate ratchet wheel and intermediate crown wheel

Genuine Omega® sliding gear mounted, part number 1725, fits Omega® 27 CHRO, Omega® 27 CHRO C12, Omega® 27 CHRO PC AM, Omega® 320, Omega® 321 cuckoo escape wheels diameter of the shoulder 1Genuine Omega sliding gear mounted, part number 1725, fits Omega 27 CHRO, Omega 27 CHRO C12, Omega 27 CHRO PC AM, Omega 320, Omega 321 * Perrin Supply Ltd is independent of and not affiliated with or sponsored by Omega. Omega warranty does not apply to parts supplied by Perrin Supply Ltd.