Here’s a SBDC015 Fieldmaster that I saw recently. The 6R15 Fieldmasters were released some time back and from what I heard at Big Time, they are selling quite well especially the SBDC011.
The SBDC015 is limited to 300 pieces. I have the SBDC013 (black case model) and from what I observed, the shroud has brushed finishing whereas the SBDC015 has a polished shroud.
The SBDC015 comes with metal bracelet as well as a black leather strap.