Duke 402

 
Duke 402

Duke 402

Description

The Duke 402 was available in different versions, here’s the base version with (when used) decentral seconds at 6 o’clock.

With 10 1/2 lignes, its diameter is the same as on most pin lever movements, and construction-wise there’s also no difference to other movements, it’s just much more rare.

base plate

base plate

The base plate shows the simple and cost efficient construction. Of course, there are no jewels used, not even for the balance.

gear train

gear train

The gear train is the classical one: Mainspring barrel with ratchet on the dial side, directly driven center minute wheel, third wheel, seconds wheel at 6 o’clock and a rather filigrane steel escape wheel.

side view of the gear train

side view of the gear train

A pin pallet lever is used as escapement.

The screw-less anular balance with its two legs is not shock protected and runs in metal bearings with metal caps. Its beating frequency of 18000 A/h can be adjusted with a short regulator arm plus scale on the balance cock.

inside the gear train bridge

inside the gear train bridge

What looks like pressed in metal bushings on the outside of the gear train bridge, is only a mock. In reality, the bearings are simple metal drillings.

Duke 402: Dial side

Duke 402: Dial side

On the dial side, which reminds a lot of anEppler movement, you see the pretty well made ratchet at 11 o’clock and the typical rocking bar winding system.

Technical data

Manufacturer:Duke
Caliber:402
Escapement:Pin lever
Balance types: Nickel anular balance
Shock protection(s): none
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
Construction type:pillar construction
Winding mechanism:rocking bar winding system
Setting lever spring:1 hole(s)
Features:s
Functions:hour, minute, decentral second
Size:10 1/2'''
Literature: Flume: K2 -
Inventory number:20026

Usage gallery

Velveta Antimagnetic

Velveta Antimagnetic

This movement with watch is a kind donation from Mario to the movement archiv. Thank you very much for your great support!

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