Dugena 998 = Helvetia 850 = FHF 72

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11 1/2”’ | Hand Wind | Swiss Lever | Sweeping Seconds

Listing ID: 2288
Manufacturer / Brand: FHF / Helvetia / Dugena
Caliber: Dugena 998 = Helvetia 850 = FHF 72
Size in French Lignes: 11 1/2'''
Size range mm largest diameter: 22 - 31 mm
Shape: Round
Winding: Manual (Crown)
Hands Setting: Crown
Seconds Hand: Sweeping seconds (central seconds)
Escapement: Lever (Swiss, English, Glashütte)
Date, Day, Month...: None
Jewels: 17
Setting Lever Screw/Pin Position: Left
Balance Position: Bottom (120 - 240°)
Shock Protection: Incabloc
Beats per hour: 18,000
Balance Type: Glucydur
Power Reserve: Approx. 39 hours
Production Period: Unknown, probably around 1960
Identification: Wheel train bridge marked with Dugena 998. Marked with the Helvetia logo and 850 under the balance. Listed as FHF 72 in the Flume K2 catalog of 1962.
External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-39#post-5110614
Country: Switzerland