Mainspring for Seiko 6138 / 6139 / 6306 / 6309 / 6319 Swiss Nivaflex Replacement
USD 19.68 USD
Specifications
| Brand | ETA Compatable |
| Type | Mainspring |
| Compatible Model | Seiko 6139 |
| Country Of Origin | Australia |
Material:Nivaflex (non-magnetic, high strength alloy). While not an official Seiko part, this mainspring is aproven substitute for servicing and restoration. Swiss-made ETA mainspring GR25341X. Clean, unused mainspring.
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