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Waltham Grade No. 620

Serial #22747497

Movement Image for serial 22747497
Movement Image
Dial Image for serial 22747497
Dial Image
Manufacturer
Waltham
Grade
No. 620
Serial Number
22747497
Size
16s
Model
1908
Jewel Count
15
Setting
Pendant
Finish
Nickel
Dial Material
Enamel
Dial Type
Singlesunk
Dial Style
Arabic
Dial Signing Name
Marca Blanco
Dial Details
Mexico Patent #4779 issued Jan. 10, 1922 to Jose' Maria Blanco (Rodriguez). Swiss Patent # 33648 issued Apr. 29, 1922. "Marca Blanco" trad Mark Registered Jan. 15, 1923. Patent expired 1927 due to non-renewal. Jose' Blanco was the proprietor of a retail establishment in Mexico City.
Outer Chapter Ring of this dial is the (24) hours for which the LONG indicator hand (hour hand) makes on revolution in a 24 hour period. The inner chapter ring is minutes for which a SHORT indicator hand (minute hand) is used to record minutes. Seconds are marked by a traditional sub-second dial and hand.
Movement Markings
A.W.W.Co.
Waltham, Mass.
15 Jewels