I used to own a Jaeger-LeCoultre Geophysic 1958 in stainless steel that I bought from the JLC boutique.
For Sale is an extra tang buckle with the regular length OEM strap specific to the JLC Geophysic 1958 that was purchased and given to me by the official boutique.
The collector wants to buy this tang buckle with OEM strap either owns a Geophysic and wants a backup OR someone wants a very unique JLC stainless steel buckle and strap for their timepiece.
For the record, I've never seen one for sale, so this is a rare accessory as the Geophysic 1958 in SS is a sold out and a limited piece but you probably already know that.
I am pricing this at $500 for both the tang and JLC OEM regular length strap.
Condition wise both the tang buckle and strap is Like New. See the pics that is what you are purchasing.
Lug Width: 19mm
Strap Buckle Width: 19mm
115mm / 75mm Length of the straps