Just spotted this bass. Looks more like a brown bass or signature with anniversary electronics with a vintage style bridge. Certainly some customisation from the original buyer and the same build year as my own SC Deluxe.

The odd thing is the serial number, maybe a different artiste's signature model based on the SC body? 
The only famous bass player i can think of with the initials RR is Rufus Reid.

2001 Alembic Stanley Clarke | BassBros

Serial Number – 01RR12615USA
Year – 2001
Colour – Natural
Body Finish – Gloss
Body Wood  – Mahogany w/ Figured Koa Facings
Neck Finish – Gloss
Neck Wood – Maple
Fretboard – Ebony
Frets – 24
Scale Length – 30.75″
Weight – 10lbs5oz/4.7kgs
Electronics – Alembic
Pickups – Alembic
Gigbag/Hardcase – Hardcase

Gotta love that koa...exceptional. Looks similar to my Series I.

What a beauty! If I were to own a short scale, that would be the one!