Turnaround time: 4 to 5 weeks
Confused about buckles?  Here's some straightforward explanations:

"Pre-V": a curved Panerai style buckle.

"GPF": a flat Panerai style buckle.

"Thumbnail": a simple curved buckle found on both Panerai and non-Panerai watches.  Also referred to as "ardillon". 

The pictures on this page are illustrative only and do not represent every finish available for each buckle type.