I have 7 Gruen made 0 size 14k cases. All are very fine with 7 different Swiss and American movements. Have only 1 o.f. bought yesterday. Have only seen 2 of similar Gruen design. Most little pendant Gruens I have are smaller with Aegler made w.w. movements. Would like to know if anyone has seen another like these 2. Probably made 1918?.
Gruen 0 size hunters: