Genuine Omega® click spring, part number 1105, base cal. 450 (see all calibres in description) Miyota automatic Designed with quality craftsmanship to

Designed with quality craftsmanship to enable smooth and precise operation while opening/closing screw-back style cases

3 mm (9/16")

RL 785-3 Swiss Ronda Quartz Movement is a 3 hand (hour/minute/sweep second) movement

diameter 29

Riveting Round Stake with 30 Holes This steel riveting stake has been hardened and ground

Genuine Omega® click spring, part number 1105, base cal. 450 (see all calibres in description) Miyota automatic Designed with quality craftsmanship toGenuine Omega click spring part number 1105 Fits calibres: Omega 450 Omega 455 Omega 550 Omega 551 Omega 552 Omega 560 Omega 561 Omega 562 Omega 563 Omega 564 Omega 570 Omega 571 Omega 620 Omega 630 Omega 710 Omega 711 Omega 712 Omega 715 Omega 750 Omega 751 Omega 752 * 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.