OISA 53 = OISA Hemeros
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10 1/2”’ | Hand Wind | Swiss Lever | Small Seconds |
Remarks:
- OISA / O.I.S.A. = Orologeria Italiana Società Azionaria, founded in 1937 by Domenico Morezzi. Morezzi produced his own movements and complete watches. Hemeros was one of his watch brands
- Rocking bar winding
- Click on the dial side
- Listing ID: 2424
- Manufacturer / Brand: OISA
- Caliber: OISA 53 = OISA Hemeros
- Size in French Lignes: 10 1/2'''
- Size range mm largest diameter: 22 - 31 mm
- Shape: Round
- Winding: Manual (Crown)
- Hands Setting: Crown
- Seconds Hand: Small 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: None
- Beats per hour: 18,000
- Balance Type: Monometallic screw balance
- Power Reserve: Unknown
- Production Period: Unknown, probably around 1950
- Identification: Dial side marked with OISA 53. Listed in the Flume K2 catalog of 1962, but without illustration.
- External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-37#post-4666535
- External Link 2: https://watch-movements.eu/blog/en/2019/03/31/domenico_morezzi-2-2/
- Country: Italy
- Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
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