Gruen had 1500+ case varieties using Swiss movements; Helbros probably had more. A very flashy Helbros with good 17j mvt. was very hard to photograph its brilliant rose gold color case and deluxe band with blue, red, yellow gold numbers dial. Case and band are good rose gold match although not appearing so in photos. 1/20 12k g.f. A strange one. The band is very comfortable with spring loaded latch and tiny links. Unfamiliar name. Maybe 1950?