Stauffer Peerex 10 1/2''' = Buser 25

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10 1/2”’ | Hand Wind | Swiss Lever | Small Seconds

Listing ID: 885
Manufacturer / Brand: Stauffer / Buser
Caliber: Peerex 10 1/2''' = Buser 25
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: 15
Setting Lever Screw/Pin Position: Right
Balance Position: Bottom (120 - 240°)
Shock Protection: Shock-Resist
Beats per hour: 18,000
Balance Type: Screw balance
Power Reserve: Unknown
Production Period: Around 1950
Identification: Shown as Buser 25 in the "Official Catalogue of genuine Swiss Watch repair parts" from 1949. Movement hallmarked with Peerex, a trademark of Stauffer
External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-52#post-7055135
Country: UK / Switzerland