Swiss Bergeon 30081-TAM-120 Drum Barrel Watch Screwdiver Size 1.20mm Swiss ToolThis popular series features color coded hex shaped heads and replaceable screwdriver blades. The blades can be changed by using the tightening nut at the end of the screwdriver (called a "set screw") making it very quick to replace screwdriver blades. Shank and handle: Stainless steel. Head: Self lubricating, synthetic POM material. Conical blade made of hardened stainless steel 54HRC reference 6899 M. Screwing power increased. Ideal for watches

Fit for Swiss SA100 Movement

China Made Perpetual Calendar@12 Mechanical Movement

Watch stem(included)

Quantity :about 400 piece

glasses industry

Reference size: 13mm

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Size: around 4X5X12cm

Applicable dial: 28

which can be used for a long time

lCase + Strap + Blue Black Dial + Hand

but the Mechanical parts are in poor condition