Double-Breasted Crochet Jacket

How to crochet the double-breasted jacket:
Size: M.
Materials:
600 g yarn (50% cotton, 50% acrylic, 140 m/100 g), crochet hook size 3 mm, and 4 buttons.

Gauge: 19 sts x 22 rows = 10 x 10 cm.

Main Pattern:
Back and front pieces: single crochet.
Sleeves: follow the chart.

Back:
Crochet a foundation chain of 40 cm (80 single crochet stitches) and continue in single crochet.
At 33 cm from the beginning, shape the armholes according to the pattern draft.
At 18 cm armhole height, begin shaping the neckline.
At 19 cm armhole height, 21 single crochet stitches should remain for the shoulder.
Left Front:
Crochet a foundation chain of 30 cm (58 single crochet stitches).
Work straight for 5 rows, then begin increasing stitches on the left side for the slope according to the pattern draft.
At 33 cm from the beginning, begin shaping the armhole on the right side according to the pattern draft; continue straight on the left side.
At 12 cm armhole height, begin shaping the neckline.
At 19 cm armhole height, 21 single crochet stitches should remain for the shoulder.
Right Front:
Work as for the left front, but make buttonholes.
Work the first pair of buttonholes at 34 cm from the beginning, and the second pair 10 cm above the first.
The distance between the two buttonholes in the same row is approximately 10–11 cm.

Sleeves:
Crochet a foundation chain of 24 cm and work following the chart.
At 27 cm from the beginning, shape the sleeve cap according to the pattern draft.
Finishing:
Sew shoulder and side seams, set in the sleeves.
Along the neckline, crochet 10 rows of single crochet.
Edge the collar, sleeve edges, front pieces, and back piece with one round of reverse single crochet (crab stitch).
Sew on the buttons.