Then... what in the best aftermarket insert for Gmt BLNR?
1. https://www.ebay.it/itm/Rolex-Lunet...209414?hash=item467f8628c6:g:CxMAAOSwk4RbNRpL
2. https://www.ebay.it/itm/BLACK-BLUE-...8?pageci=18586901-aaaa-4831-88e3-c3ea5916967d
3. https://www.aliexpress.com/item/38m...lgo_pvid=2ef9f47d-396b-40ed-a2e0-86726820ab01
4. Or the version sold by prawnboy
1. https://www.ebay.it/itm/Rolex-Lunet...209414?hash=item467f8628c6:g:CxMAAOSwk4RbNRpL
2. https://www.ebay.it/itm/BLACK-BLUE-...8?pageci=18586901-aaaa-4831-88e3-c3ea5916967d
3. https://www.aliexpress.com/item/38m...lgo_pvid=2ef9f47d-396b-40ed-a2e0-86726820ab01
4. Or the version sold by prawnboy