06/02/2026
Off the bench: c.1970's Gruen Cal. 770 (Valjoux 7734) 17 jewel manual date chronograph. The hour, minute and chrono hands were pretty contorted due to a missing crystal and poor handling (I'm bad at taking before pictures). The subdial hands were chipped of almost all paint. After overhauling the movement, attention moved to cosmetic. Ca9reful straightening of the hands, some lume and off-white enamel under a fresh crystal and lightly re-finished case have brought this great looking chunk of '70's back.