1940s Croton Aqua-Medico Swiss doctor's watch with red sweep second hand and water resistant case. Solid 14K rose gold Machine-Age style strap and case. Silver dial with hand-painted luminous hour markers and hands. Yellow gold replacement crown. Rose gold strap marked Kreisler 14K with a US patent number on the adjustable-length deployant buckle. Marked on interior. Interior, 6.7 circumference. Light wear.. 14K Rose Gold/metal