Features:
Adopting premium metal construction, anti-rust and stable. Adjustable, the crown winder fits most watch crown, winding your mechanical watch easily and fast. There are 4 different size, you can get suitable one. Can be used when letting down the mainspring when working on mechanical watches. Easy and handy to take with you because its small size and light weight.

Specifications:
Material: Metal
Color: Shown As Pictures
Length: Approx. 8cm / 3.1inch
Optional Caliber: #1 3mm /0.1inch, #2 3.5mm / 0.1inch, #3 4mm / 0.2inch, #4 4.5mm / 0.2inch
Weight: 27 - 28g
Type: Tools & Repair Kits
Function: Repair Watch, etc

Package Includes:
1 x Watch Crown Winder