Stem Extender

Winding stem extensions – available in various designs.

Winding stem extensions are practical replacement parts for mechanical and quartz watches when a winding stem has broken off or the existing stem is not long enough. They enable a stable, precisely fitting extension of the existing stem without having to replace the entire component.

Ideal for quick repairs, adjustments and movements where the original stem is no longer available or is too short.

Subgroups

winding stem extenders

winding stems extensions with identical or different internal and external dimensions. Swiss made.

Packaging unit: 10 pieces.

name	outside-Ø	Version	inside diameter	item No.
winding stems	0.60 mm	Extensions	0.60 mm	049950
winding stems	0.70 mm	Extensions	0.70 mm	049951
winding stems	0.80 mm	Extensions	0.80 mm	049952
winding stems	0.90 mm	Extensions	0.90 mm	049953
winding stems	1.00 mm	Extensions	1.00 mm	049954
winding stems	1.20 mm	Extensions	1.20 mm	049956
winding stems	0.70 mm	Extensions	0.90 mm	049961
winding stems	0.90 mm	Extensions	0.70 mm	049957
winding stems	0.90 mm	Extensions	0.80 mm	049958
winding stems	0.90 mm	Extensions	1.20 mm	049959
winding stems	1.20 mm	Extensions	0.90 mm	049960

winding stem extenders, male

Winder Stem Tops with Positive Flange. Swiss Made.

Content: 3 Pce per Unit

name Version thread Ø Head-Ø base item No.
winding stems top positive 0.90 mm 1.20 mm normal 049990
winding stems top positive 1.00 mm 1.20 mm normal 049991
winding stems top positive 1.10 mm 1.30 mm normal 049992
winding stem extenders, female

Winder Stem Extensions with Negative Flange

Content: 3 Pce per Unit

name Version thread Ø Head-Ø item No.
winding stems top negative 0.90 mm 1.20 mm 049980
winder top Omega

Winder Stem Extensions with Negative Flange

Content: 1 Pce per Unit

name Version item No.
winding stems Omega 049988
winder top Mido

Winder Stem Extensions with Negative Flange

Content: 3 Pce per Unit

name Version thread Ø manufacture item No.
winding stems top negative 0.90 mm Mido 049989
Set of winder stem extensions

A Low-Cost Assortment of Winding Stem Extensions for Quick Workshop Needs.

name Version dimensions contents item No.
winding stems Extensions 0.60 - 1.20 mm 106 pieces 049999

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Stem Extender

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name	Version	thread Ø	Head-Ø	base	item No.
winding stems	top positive	0.90 mm	1.20 mm	normal	049990
winding stems	top positive	1.00 mm	1.20 mm	normal	049991
winding stems	top positive	1.10 mm	1.30 mm	normal	049992