HB 115 MS

 
HB 115 MS

HB 115 MS

Description

The HB caliber 115 MS originates from Pforzheim, Germany and is a typical mid class german wristwatch movement.

It contains 17 jewels, with two of them used as cap jewels on the dial side, which is pretty unusual. The screw balance runs in two shock protection systems, maybe Monorex, and there is a long regulator arm with a nice dial on the balance cock.

The movement, which uses a directly driven center second hand, is built in two levels, which makes it appear rather high.

HB 115 MS dial side

HB 115 MS dial side

Technical data

Manufacturer:HB
Caliber:115 MS
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): ?
Balance bearing / direction hairspring:Clockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel
  • center minute wheel, mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:3 hole(s)
Features:SCD
Functions:hour, minute, second
A/h:18000
Size:11 1/2'''
Literature: Flume: 1957 33

Usage gallery

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Links

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