Genuine Omega® adjusting spring for regulator, part number 1356, base cal. 550 (see all calibres in description) Rolex® 1225 measured from above the handshaft)

measured from above the handshaft) that has a pendulum length of 23

Regulator for adjustable stud holder for flat hairspring to fit Jaeger LeCoultre® calibres: 910

Unitas 6503

The pins fit friction into this pin holder

70 mm (thick) flat mineral crystal with calendar window (at 4 o'clock position

Genuine Omega® adjusting spring for regulator, part number 1356, base cal. 550 (see all calibres in description) Rolex® 1225 measured from above the handshaft)Genuine Omega adjusting spring for regulator, part number 1356 Fits calibres: Omega 550 Omega 551 Omega 552 Omega 560 Omega 561 Omega 562 Omega 565 Omega 600 Omega 601 Omega 602 Omega 610 Omega 611 Omega 613 * 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.