Mauthe 612
Description
The 10 1/2 ligne windup caliber Mauthe 612 origins from the 1960s and is a reliable contemporary construction.
base plate
The base plate shows the well execution, so, for example, all important bearings contain rubies.
base plate with center minute wheel
As still usual that time, the center minute wheel is directly driven by the mainspring barrel and beared under an own cock.
gear train
The Mauthe 612 uses the classical gear train, which lets the center minute wheel follow the third wheel, the directly driven center seconds wheel and finally the filigree steel escape wheel.
side view of the gear train
The modern two-leg anular balance is beared in two inhouse Mauthe Super-Contrashock shock protections.
It beats with 18000 A/h, which can be regulated on the hairspring key only.
As escapement, a swiss pallet lever escapement is used.
Mauthe 612: Dial side
To reach the number of seventeen jewels, the Mauthe 612 uses three cap jewels, two for the escape wheel bearing (OK) and one (useless) for the oil-free bearing of the lever.
Besides this, you can spot the dial side shock protection bearing and the yoke winding system of this well made german movement.
In the lab
Timegrapher result
The rates of the timegrapher varied a lot in each position, so the figures show the medium deviation. For the age and use of the specimen, they are still pretty well.| horizontal positions | |||
|---|---|---|---|
| dial up | +-0 s/d | 242° | 5.0ms |
| dial down | +-0 s/d | 254° | 5.1ms |
| vertical positions | |||
| crown right (12 up) | -32 s/d | 276° | 7.6ms |
| crown up (3 up) | -33 s/d | 311° | 7.8ms |
| crown left (6 up) | +-0 s/d | 267° | 8.0ms |
| crown down (9 up) | +-14 s/d | 263° | 7.2ms |
Technical data
| Manufacturer: | Mauthe |
| Caliber: | 612 |
| Size: | 10 1/2''' (measured: 23.3mm) |
| A/h: | 18000 |
| Number of jewels: | 17 |
| Escapement: | Pallet lever |
| Balance types: |
monometallic anular balance (two legs) |
| Shock protection(s): |
Super-Contrachoc (Mauthe) |
| Balance bearing / direction hairspring: | Counterclockwise |
| Moveable stud: | no |
| Adjust mechanism: | Hairspring key |
| Construction: |
|
| Construction type: | solid construction |
| Winding mechanism: | yoke winding system |
| Setting lever spring: | 1 hole(s) |
| Features: |
|
| References: |
Flume: K2 1962 4 |
| Mentioning in literature (years): | 1961 - 1964 |
| Inventory number: | 22048 |
Usage gallery
Mauthe gents watch