Omega® Case Back Gasket (Round O-Ring) OM-0880928N, case numbers: 1110157, 2175, 2542, 2647, 2665 Omega® quartz crowns with stem attached Slotted black foam under the

Slotted black foam under the velvet inserts holds rings firmly in place

genuine 063PZ5171 Omega® crystal

caliber Omega® 491

Jaeger LeCoultre® barrel bridge screw

87 mm plastic crystal with white ring

Omega® Case Back Gasket (Round O-Ring) OM-0880928N, case numbers: 1110157, 2175, 2542, 2647, 2665 Omega® quartz crowns with stem attached Slotted black foam under theOmega Case Back Gasket (Round O Ring) OM 0880928N, case numbers: 1110157, 2175, 2542, 2647, 2665 O ring case back gasket to fit Omega case numbers: 1110157, 2175, 2542, 2647, 2665 *Perrin Supply Ltd is independent of and not affiliated with or sponsored by Omega. Omega warranty does not apply to parts supplied byPerrin Supply Ltd. Using generic parts may devalue your watch.