Timex M32

 
Timex M32

Timex M32

Description

The Timex M32 is part of the first series of mechanical movements (windup and selfwinding). It is the version with a date indication.

Since all gears, the lever and also the balance wheel are beared under one single plate, this movement was not torn down into pieces, only the calendar mechanism, which turns the tonneau-shaped movement into a round one, could be removed.

As on all other movements of that series, there were no rubies used.

A two-leg anular balance beats with 18000 A/h and controls a pin lever movement. There’s no conventional shock protection, but the massive, v-shaped bearings and axle make this movement very robust and immune against shocks.

movement without calendar and automatic

movement without calendar and automatic

The selfwinding mechanism consists only of an oscillating weight, an excenter changer with two pawls, a driving wheel, and axle, which goes through the mainspring barrel to the dial side, where the planet reduction gear and the ratchet are located.

movement side without oscillating weight

movement side without oscillating weight

The oscillating weight with its excenter is mounted with two screws on the gear train bridge.

inside the oscillating weight

inside the oscillating weight

On the yet empty dial side, you see the ratchet, the rocking bar winding mechanism and the indirectly driven time indication works, of which the cannon pinion engages with the mainspring barrel.

empty dial side

empty dial side

The cannon pinion consists of two concentrical gears, connected with a slipping clutch. The lower wheel engages with the mainspring barrel, the upper one with the change- and hand setting wheel.

cannon pinion

cannon pinion

Here you can see the planet gear of the selfwinding mechanism. The lower part engages with the mainspring barrel core.

selfwinding gear

selfwinding gear

The hour wheel is also double executed. The lower part engages with the changer wheel and the upper one drives the switching wheel of the calendar mechanism.

hour wheel

hour wheel

The calendar mechanism is as simple as possible: At position 8 o’clock, there’s the switching wheel with its tiny pin, that slowly advances the date wheel.

Timex M32: Dial side

Timex M32: Dial side

A constructive oddity of the movement is, that the date wheel is beared flyingly between four pins. It is held vertically in position by the dial only. That means, when only one foot of the dial is broken (which happens easily), the date ring can no longer be held in position.

In the lab

The specimen shown here came dirty and with a broken dial into the archive and got a simple service.

Timegrapher result

For a pin lever movement, which only got a non-professional service, the rates are pretty OK. A true revision should have resulted in higher amplitudes and this better rates, but for obvious reasons, a full teardown of the movement was avoided.

horizontal positions
dial up -34 s/d 175° 1.8ms
dial down +16 s/d 216° 1.6ms
vertical positions
crown right (12 up) +17 s/d 194° 2.7ms
crown up (3 up) +20 s/d 178° 1.8ms
crown left (6 up) -3 s/d 174° 1.7ms
crown down (9 up) +12 s/d 177° 2.4ms

Technical data

Manufacturer:Timex
Caliber:M32
Caliber base:Timex M24
Size:13''' (measured: 29,2mm)
A/h:18000
Escapement:Pin lever
Balance types: monometallic anular balance (two legs)
Shock protection(s): none
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:no
Adjust mechanism:Hairspring key
Construction:
  • lever, escape wheel, seconds wheel, third wheel, large driving wheel, mainspring barrel
Construction type:solid construction
Winding mechanism:rocking bar winding system
Setting lever spring:2 hole(s)
Features:
  • SCD (direct center seconds)
  • QG (date indication (aperture))
  • AUT (selfwinding)
Mentioning in literature (years): 1968
Inventory number:21013

Usage gallery

Timex gents watch, model 47671

Timex gents watch, model 47671

Links

This movement and watch is a kind donation from Lars Schröder to the movement archive. Thank you very much for your great support!