Longines® Waterproof Crown CN-LONG73 thick square, flush pipe, diameter 4.50 mm Omega® 630 chain drive (chains included)

chain drive (chains included)

There are three measuring surfaces on the Suregauge™ XL for easy measuring

400 Day Clock Suspension Unit 38 can be identified in the Horolovar 400- Day Repair Guide and is the same as Unit 38A

the tail of the counterbalance is a closed circle

gilt plates

Longines® Waterproof Crown CN-LONG73 thick square, flush pipe, diameter 4.50 mm Omega® 630 chain drive (chains included)Longines Waterproof Crown CN LONG73 thick square, flush pipe, diameter 4. 50 mm yellow, thick square, flush pipe with wings and name logo, diameter 4. 50 mm, height of crown only 2. 90 mm, total height of crown 2. 90 mm, opening diameter to tube crown fits 2. 00 mm, tap 0. 90 mm * Perrin Supply Ltd is independent of and not affiliated with or sponsored by Longines. Longines warranty does not apply to parts supplied by Perrin Supply Ltd. Using generic