Derby 33

Derby 33 | - The Movement Archive

Derby 33


This is a beautiful old-style swiss movement with the old Inabloc shock protection type, which is pretty rare to find nowadays.

This movement is adjusted in three positions and is unmarked, but a fellow collector identified it.

Derby 33: Derby 33 dial side

Derby 33 dial side

Technical data

Size:10 1/2'''
Number of jewels:15
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): Incabloc (old)
Balance bearing / direction hairspring:Clockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:3 hole(s)
  • s (decentral seconds)
References: Flume: 1947 32

Usage gallery

Derby 33: Mobilia Preserval Incassable gents watch

Mobilia Preserval Incassable gents watch

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