Otto Frei.
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Mainsprings to fit Gruen Watch Movements

   
Watch Mainspring # 610K
$18.80
MS-610K
Metric Width: 1.5 mm, Metric Strength: 0.11 mm, Length in Inches: 11.5, Dennison Width: 6, Dennison Strength: 10

Watch Mainspring # 610K fits many different movement by various makes. Gruen calibers 415 all versions Cal 416, 417, 422, 422R, 423, 424. Guba 10 1/2 linge calibers 1200, Cimier Lapanouse Cal 125 &128, Minerva 48, 49 & 50, Oris 290, 291, 292, 293, Otero 26, Parker 10E, 11E, Parrenin Mainspring 85, 90, 87, 95, Phenix Mainspring Calibers 130, 133, 140, Pierce Mainspring Caliber 105, Reconviliver Mainspring Caliber 2320, 2321, 2322, 2323, A. Schild Mainspring Caliber 1650, 1651, Unitas mainspring caliber 148, 150, 155, 156, Venus Mainspring Caliber 220, 221, 222, 225, 226, 223, 227, Mainspring for ETA Caliber 900, 901, 925, 925-3, 926, 930, 936, 1015, 1019, 1050, 1052, 1061, Mainspring for Eterna 965, 970, 1020, Girard Perregaux 05-OLD, Benrus mainspring BF, BG, CK, DM, DMA, DN, EN, Bulova mainspring 10BA, 10BAC, 10BE, 10BEC, 10BX, 11ZE, CORTEBERT Mainspring 925, Durowe mainspring 435, Enicar 1000
 


   
Watch Mainspring # 4105P
$18.80
MS-4105P
Gruen 510, 510CA, 512 CD Metric Width: 1.3 mm, Metric Strength: 0.105 mm, Length in Inches: 11.5
Dennison Width: 4, Dennison Strength: 10.5
 

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