Tissot RockWatch Natural Green Alpine Stone Ref. R 150

Unveiled in 1985 as a groundbreaking fusion of geology and Swiss horology, the Tissot RockWatch featured watch cases carved directly from natural Swiss Alpine rock. Designed under the direction of SMH (later Swatch Group), the concept ensured that no two watches were ever identical due to natural variations in mineral veining and coloration. This mid-size "R 150" reference is crafted from a vibrant speckled green granite, featuring a seamless, monolithic case-and-dial construction paired with color-matched green hands and a 6-screw stainless steel structural backplate.

- Mint condition

- Year 1985

- Extremely rare green rock

- Original box included

- 32 mm