De este enlace:
A ver si puedo poner una foto que tienen, que solo es para usuarios registrados…
Saludos!
I have been trying to figure out the progression in Hamilton 10 and 12 size models. I am setting forth what I have gathered from posts here and elsewhere. None of my information is based on primary materials. Therefore, I make no claims to accuracy. I am posting this in hopes that others will correct mistakes and help fill in blanks in my account.
HAMILTON 10/12 SIZE WATCHES
12 SIZE
Illini -Based
Hamilton 400 – Hamilton version of Illini, made 1930-1932, 2,300 made, the first 800 (serial numbers H1001 to H1800) were rebuilt from existing Illinois “Illini” grade 528 movements (extra-thin, 2nd model); the next 1500 (H2001 to H3500) were made from scratch and differ slightly in that they have a pallet bridge and have slightly different jewel settings at the balance and escape wheel.
Bridge
Hamilton 900 – 1910-24, 12/14 size plates 19j/5 adj
Hamilton 902 – 1924-28, replaced 900, 12 size plates, 19j/5adj
Hamilton 904 – 1928-__, replaced 902, 12 size plates 21j/5adj
Hamilton 920 – 1912-24, concurrent with 900, 12/14 size plates 23j/5adj
Hamilton 922 – 1923-36, replaced #920, 12 size plates, 23j/5adj
Hamilton 922MP --1928-36, concurrent with Hamilton 922, 12 size plates, 23j/5adj
¾ Plate
Hamilton 910 – 19__ -24, replaced __, 12/14 size plates, 17j/adj
Hamilton 912 – 1924- __; replaced , 12 size plates, 17j/adj
Hamilton 914 – 19 -24; replaced _, 12/14 size plates, 17j/3adj
Hamilton 916 – 1924- , replaced , 12 size plates, 17j/3adj
Hamilton 918 – 1925-; replaced 916, 12 size plates 17j/adj
10 SIZE -
Hamilton 917 – 1936 - __; 17j/3adj, 3/4 plate
Hamilton 921 – 1936 - __; 17j/5adj, bridge
Hamilton 923 – 1937 – 1949, 23j/5adj, bridge
Hamilton 945 – 1950 – late 1960s, 23j/5adj, 3/4 plate; replaced 923