Elgin Grade 217

 The Elgin grade 217 pocket watch is an 18 size, lever-set movement with 15 jewels.

This one was made about 1903.  It's in a swing-out nickle case, quite common during this time.

Open-face, swing-out cases are more durable than other types and of course have fewer gaps to let in dust and moisture.  Some railroad standards called for swing-out cases specifically.

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