Invisible Stitch Made by Specialist Sewing Machine

This page is the CodyCross answer for the clue below from Art Museum, Group 734, Puzzle 2 (Sistine Chapel).

Question is: Invisible Stitch Made by Specialist Sewing Machine

and the answer is: OVERLOCK

Word Meaning:

OVERLOCK — (sewing) A stitch that sews over the edge of one or two pieces of cloth for edging, hemming or seaming.

Definitions from Wiktionary.