Good frame, Orange always spent money on the frame and not the components. The base (stx) model C16 was priced up against bikes wearing LX kit. They also offered groupset options so often a Clockwork would be built as a XT and a P7 built as an STX bike depending on what the buyer watned for their money.
C16 commemorated the 16th revision to the Clockwork frame IIRC.
Somerset, like 'Heartbeat' with newer cars!
Retro MTB: 1992 Cannondale 3.0 Deore XT M730. 1992 Marin Pine Mountain Deore DX M650.
Retro road: 1992 Eddy Merckx Corsa Extra Telekom Shimano 600 STI. 1993 Dyna Tech Ti.
Modern: 2006 Wilier scandium Ultegra 6600. 2014 Wilier GTR Ultegra 6800.