Rolex NOS Mainspring Barrel Complete with Mainspring B2130-315-2-Y1 for Calibre 2130 | 2135 for Ref. 69160 | 69163 | 69173 | 69138 | 69178 in Blister - Brand new

Rolex mainspring Barrel (B2130-315-2-Y1) complete with mainspring in NOS condition. Brand new, still in blister pack. Suitable for calibers 2130 and 2135 as well as references 69160, 69163, 69173, 69138, and 69178. Ideal for servicing or as a spare part.