The metal strap looks seamless and naturally connected, so it is difficult to adjust the size of the steel band. In fact, as long as you have tools, you can adjust the length of the metal strap yourself. How? Let's have a look.

First, press the button on the strap with both hands to unlock the steel band lock of the metal watch.

Second, find the downward arrow symbol and place the watch steel belt on the plastic base according to the arrow direction.

Third, aim the thimble at the metal steel needle on the bayonet and knock it out with a hammer. Knock out two steel needles in the same way.

Fourth, according to the thickness of your wrist, you can continue to disassemble other wrist joints, then take out the extra parts, align the concave and convex parts of the steel needle as before, and knock them back hard.