Hamilton / Model reference
Compare the individual source configurations below with the watch you are identifying.
Replacement dial B21, 18/0 size, listed for Millay. This is a dial illustration, not a complete watch. The 1935 date identifies this source, not the model's production period.
A similar case or dial is a starting point. Check the documented configuration and any movement evidence before settling on an identification.
Dates below belong to publications. Different specifications remain attached to their own source appearance.
1935
Hamilton Watch Company, Lancaster, Pennsylvania · 26
Millay
Replacement dial B21, 18/0 size, listed for Millay. This is a dial illustration, not a complete watch. The 1935 date identifies this source, not the model's production period.
1947
Hamilton Watch Company, Lancaster, Pennsylvania · 38
Millay
Catalog-listed replacement dials: B21 — B.F. Silver. Dial size 18/0. Source date does not establish model production dates.