Longines 501-110, Train wheel bridge

• NOS LONGINES original train wheel bridge, not in factory packaging

• Fits cal: 501, 503, 505

Data: Longines cal: 501 (Record 1955)

• 17 jewels, automatic winding, date.
• Size: 11.5''' 25.6 mm.
• H: = 5.3 mm.
• N: = 19.800 A/h.
• Power reserve: 44 h.

Versions: 19800 A/h:

• 501: date.
• 503: day, date.
• 505: quickset date.
• 507: day, quickset date.

Versions: 21600 A/h, micrometer regulator:

• 506: quickset date.
• 508: day, quickset date.