Manufacturer:

• Aegler (Rolex)

Description:

• Manual winding movement
• Escapement Stone lever
• Yoke winding system
• Bimetallic screwed balance
• Breguet hairspring
• Patented crown mechanism

Functions:

• Central seconds

Data:

• 6¾ x 11 lignes
• D 15.1 x 24.55 mm, H 4.2 mm
• 15 jewels
• 18,000 A/h
• Power reserve 44h

Production period:

• 1929-1937