Genuine Omega® balance staff, part number 1321, fits Omega® 120 Rolex® 765 RL 774 RL 774 Ronda

RL 774 RL 774 Ronda Normtech Quartz Movement is a 2 hand (hour/minute) movement with a date window at the 3 o'clock position

medium grit

Length is for desired lug to lug width

10 mm flat mineral crystal with gold trim

Hook & Knob 245 mm is weight rod with the hook and knob attached that is for a weight shell length of 245 mm

Genuine Omega® balance staff, part number 1321, fits Omega® 120 Rolex® 765 RL 774 RL 774 RondaGenuine Omega balance staff, part number 1321, fits Omega 120 * 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.