Case Manufacturer: Waltham 

Construction: Gold Filled

Dimensions: 43.2mm

Condition:  Very good pre-owned condition. Movement winds freely, runs and keeps time across 24 hours. Has not been tested beyond that time period. Please note this is a vintage piece, servicing is always recommended to ensure continued performance and accuracy. Case shows nice even wear average for a loved timepiece. Crystal is nice and clear. Porcelain face shows a few light hairlines but is still very nice. Please see photos. 

Details: This is a rare ultra thin opera model.

Grade: Ruby

Model: 1912

Estimated Production Year: 1918

Run Quantity: 1,000

Grade/Model Run: 22 of 24

Grade/Model Total Production: 24,500

Size: 6/0s / 18s

Jewels: 17j

Movement Configuration: Openface

Movement Finish: Nickel

Movement Setting: Pendant

Plate: 3/4 Split Plate

Hairspring: Breguet

Adjusted: Yes

Railroad Grade: No