Illinois Grade 603 Variants

Profile Code	Size	Jewels	Configuration	Finish	Model	Setting	Estimated Production
16s-M7-15j-ONP-U-	16s	15j	Openface	Nickel	7	Pendant	4,910
16s-M6-15j-HNP-U-	16s	15j	Hunting	Nickel	6	Pendant	2,170
16s-M7-15j-HNP-U-	16s	15j	Hunting	Nickel	7	Pendant	130

Estimated Timeline for Variants

16s-M7-15j-ONP-U-

16s-M6-15j-HNP-U-

16s-M7-15j-HNP-U-

Years

1912

1913

1914

1915

1916

1917

1918

1919