Rare – and magnificent – men's Gruen "Bat Wing" or flex-lug Ristside “Fraternity” Curvex wristwatch, circa 1949. In fine, unrestored condition featuring original pearlescent dial and high grade movement, this 50mm work of wrist art is cleaned, oiled, calibrated; fitted with a period alligator strap and offered in its original factory clamshell presentation case with outer box and tag.






