With all due respect none of them are period correct
By: Clavi : May 25th, 2025-09:12
The watch pre-dates the JL logo, so the crown for this model was plain / no logo. And consequently same logic applies to the buckle. Plus, the buckle you have chosen is for a much later (>1968) model, while the crown is for a 1990s one.
So, in the spirit of staying period correct, both crown and buckle should be very generic / have no specific JL branding