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Derby 33

 
Derby 33 |

Derby 33

Description

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

Manufacturer:Derby
Caliber:33
Size:10 1/2'''
A/h:18000
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
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:3 holes
Features:
  • s (decentral seconds)
References:Flume: 1947 32
Data sheet:1941
Hint: The jewel count, the types of balances used, and the shock protections employed refer only to the specimens held in the archive and are therefore not relevant for the precise identification of the movement.

Usage gallery

Derby 33: Mobilia Preserval Incassable gents watch

Mobilia Preserval Incassable gents watch

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