Very well priced, and no longer available from Panerai, this is the 45mm stainless steel Radiomir Black Seal "Logo Dial".

This sporty cushion case classic from Radiomir features luminous oversized hour markers and subsidiary running seconds at 9. The 'OP' moniker at 6 indicates that under the bonnet is Panerai's mechanical hand-wound OP II calibre, waterproof to 100m. Fitted to a new dark leather strap with white stitching, and fastened by the oversized Panerai pin buckle. 

Presented with its pearwood Panerai box, booklets, and Panerai certificate.