FHF 69-21 (Standard)

Dugena 3602

FHF 69-21 (Standard) | 17jewels.info - The Movement Archive

FHF 69-21 (Standard)


One of the most often produced and used movements for ladies' watches is the FHF 69-21 (ST), a so-called “Standard” caliber with a size of 6 3/4 x 8 lignes, which was ideal for the popular mid-sized ladies' watches at that time.

The suffix “-21” indicates the semi-fast beat rate of 21600 A/h, which was the standard then.

FHF 69-21 (Standard): base plate

base plate

The base plate shows the good execution of this movements, where of course all important bearings contain rubies. The minute wheel is only ruby-beared on the movement side, not on the dial side.

FHF 69-21 (Standard): gear train

gear train

The gear train construction with its modern non-decorated gears is “standard”, too: On the rather large mainspring barrel follows the directly driven center minute wheel, the two small third- and seconds wheel and finally the large escape wheel, which is partially located below the bearings for third- and seconds wheel.

With that two-storey construction, the available space could be used very well and many parts were of a larger size.

FHF 69-21 (Standard): side view of the gear train

side view of the gear train

The FHF 69-21 (ST) uses a modern three-leg anular balance, which is secured in two Incabloc-shock-protection bearings.

A speciality is the tiny lever on the hairspring key, which can regulate the distance of the two pins of the hairspring key, so that the hairspring has got as few play as possible. This should enhance the accurancy and ease service works.

FHF 69-21 (Standard): balance


On the dial side, you can see, that the escape wheel bearing is covered with a cap jewel. While a cap jewel for the movement side bearing would have even been better, this is not a bad solution.

Besides this, you can spot the Incabloc bearing (at position 12:30), and the yoke winding system with its characteristically shaped setting lever spring.

FHF 69-21 (Standard): FHF 69-21 (ST): Dial side

FHF 69-21 (ST): Dial side

In the lab

This movement came in pretty good condition into the archive and got a simple service (cleaning, oil change) due to its age.

Timegrapher result

The specimen shown here is from the Dugena ladies' watch and shows a fair performance on the timegrapher. The deviations in the individual positions should more or less neutralize each other.

horizontal positions
dial up -7 s/d 299° 0.0ms
dial down -2 s/d 298° 0.2ms
vertical positions
crown right (12 up) -11 s/d 299° 0.1ms
crown up (3 up) +-0 s/d 278° 0.3ms
crown left (6 up) +16 s/d 261° 0.4ms
crown down (9 up) -6 s/d 254° 0.0ms

Technical data

Caliber:69-21 (St)
Caliber base:FHF 69
Size:6 3/4 x 8''' (measured: 15,0 x 17,9mm)
lift angle:52°
Number of jewels:17
Escapement:Pallet lever
Balance types: monometallic anular balance (three legs)
Shock protection(s): Incabloc
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:yes
Adjust mechanism:Fonto
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:4 hole(s)
References: Flume: K3 86
Mentioning in literature (years): 1969
Inventory number:22066

Usage gallery

FHF 69-21 (Standard): Mirexal ladies' watch

Mirexal ladies' watch

FHF 69-21 (Standard): Giroxa ladies' watch

Giroxa ladies' watch

FHF 69-21 (Standard): Blumus ladies' watch

Blumus ladies' watch

FHF 69-21 (Standard): Dugena ladies' watch

Dugena ladies' watch

This movement in and with the Dugena ladies' watch is a kind donation from Lars Schröder. Thank you very much for your great support of the movement archive!