Center Gear for ETA C01.211 Movement Watch Part #6430Features: Product material is strong, durable, long service life. Package included: Please select the quantity you need based on the Listing option All dimensions are manually measured with a 5% data deviation.

Can be usedtoupgrade your watch to make it look uniqueand cool

12mm is the length of the second hand

Features: convenient and labor-saving

Outside Diameter: 12 1/2 Ligne

lTransparent bottom case + sand belt to modify your watch

Round Shape / Base Ø 31 mm / Calibre 12 1/2'''

50mm diameter opening available

Original Movement Jumper Spring for Movement Omega 3303/3313

External diameter: like the picture shown

Size: 9X13X14mm

Protective nylon ends are replaceable and will not scratch watch face

The outer diameter of the bottom is about 30