This is the Case Back Gasket
(rubber o-ring) which fits the older Speedmaster 145.014 models
These are Omega supplied service parts which fit the vintage Speedmaster MKII watch.
Omega Seamaster 088.5091NS Case Back Seal Gasket fits 145.014
SKU: 088.5091NS
£29.99Price
Items can only be returned if either faulty, in the case of the item not being required then it must be returned exactly as received. For example if the item is new in a sealed packet and/or has protective covers in place then it must be returned the same otherwise item is no longer new and the value is greatly reduced, these items can only be returned/refunded by agreeing a lower value with Swiss Limited Editions before returning reflecting the new lower value of the item.