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Guba 875 new

 

Guba 875 newGuba 875 new

Description

Movements from Guba, Gustav Bauer in Ellmendingen near Pforzheim, Germany, are always quite a rarity, but this ladies' watch caliber Guba 875, here in the new version, is really difficult to find. The term "new" is pretty misleading here, since the old and new version differ in so many parts, especially on the dial side, that they are in fact two different movements. The caliber number 875 indicates its diameter of 8 3/4 (=8.75) lignes.

It's a bit difficult to say, when this movement debuted, maybe it was in the early 1950ies.

dial sidedial side

There are two noteable facts on this movement: First its red-golden color, second the ruby bearing for the minute wheel, which is pretty unusual for a movement of the early 1950ies and is responsible, that it already advertises with "17 jewels".

gear traingear train

The Guba 875 (new) has got the classical gear train: The mainspring barrel drives the center minute wheel, followed by third wheel, seconds wheel (with decentral seconds hand at 6 o'clock) and finally the escapement wheel.

side view of the gear trainside view of the gear train

The golden toned screw balance, which beats contemporarily slow with 18000 A/h is not yet shock protected. Its precise beat frequency can be adjusted with the hairspring key only, despite the "fast/slow dial on the balance cock". These are the only two downsides on the otherwise very well made movement.

Guba 875 new: Dial sideGuba 875 new: Dial side

On the dial side, you see the yoke winding system with its characteristical setting lever spring. You also see the engraved caliber number. The old version of this movement differs a lot here, especially on the setting lever spring.

 

 

 

 Technical data

ManufacturerGuba
Caliber875 neu
Number of jewels17
EscapementAnchor with pallets
BalanceNickel screw balance
Shock protection(s)none
Balance cock directionclockwise
Hairspring studfixed
Regulator typeHairspring key
Movement constructionFork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Mainspring barrel
Construction typesolid construction
Winding mechanismyoke
Setting lever spring4 holes
FunctionsHour, minute, small second
Beats per hour18000
Size83/4''' (measured: 19,1 mm)
Image in Flume Werksucher 1952 3
Inventory ID 17051
Guba 875 neuGubaGuba875 neu8 3/4'''Guba 875 neu17 Jewels, 8 3/4''', 18000 A/h
Factsheet

 

 

 

Usage gallery

Accurata ladies' watchAccurata ladies' watch

 

 

 

This movement was kindly donated by Günter G. Thank you very much for your support of the movement archive!