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Förster 90

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Förster 90 caliber

Förster 90 caliber

Förster 90 caliber

Basic Information

Name	Förster 90
Manufacturer	Förster
Launch Year	1960
Caliber Family	Description 50: manual wind, 10.5" 80: automatic 81: automatic, date 85: manual wind, date budget version with rocker-bar winding: 500: manual wind, 10.5" 800: automatic unimportant modifications: 51: manual wind, 10.5" 86: manual wind, date 90: automatic 91: automatic, date date simplified, rotor and set-lever spring new: 186: manual wind, date 190: automatic 191: automatic, date Related calibers Förster 186, Förster 190, Förster 191, Förster 50, Förster 500, Förster 51, Förster 80, Förster 800, Förster 81, Förster 85, Förster 86, Förster 90, Förster 91
Is COSC certified	No

Technical Details

Lignes Dimensions	11.5 ‴
Dimensions	26 mm
Height	6.4 mm
Further Measures	Mounting Diameter (Dm): 25.6mm Stem height (T): 2.15mm Mounting Height (F): 1.35mm
Power Reserve	38 hours
Frequency	18,000 vph
Jewels	25

Complications and Specifications

Shape	Round
Complications	Sweep Second
Shock Protection	KIF
Regulator Type	Pinned Regulator (or Index Regulator)
Movement Type	Automatic
Rotor Type	Central Rotor
Escapement Type	Swiss Lever
Control Type	Balance Wheel
Winding Type	Automatic (Rotor-Driven)
Setting Type	Stem Set (Crown Pull)

Additional Information

Hand Sizes	1.50 x 0.90 x 0.22mm
Hand Count	3
Country Of Manufacture	(not set)
Notes	Remarks: detached manual wind Other data: balance staff: U2034 stem: W2358 mainspring / battery: 1.45 x 9.0 x 0.10mm balance staff ronda: 3835 (11,5) stem ronda: 1106 (10,5) stem ronda: 1127 (11,5) Mainspring: 1.450 x 9.500 x 0.095 x 320.000 mm
Signature	ca. 1960: FB 90, Dugena 1054, 25 Jewels; Kif-Protechoc (Dugena 1054, Förster 90)

Metadata

Created At	Sep 15, 2023
Updated At	Apr 23, 2025, 11:32:46 PM