Longines® Undercut Crown diameter 4.50 mm 1005 Series Ronda and the Retrograde indicator at

and the Retrograde indicator at the 12 o'clock position is a "Date" Retrograde

Fits Omega® case numbers: 1910050

Peseux 7010

Felsa 781N

to fit Omega® case numbers: 1950022

Longines® Undercut Crown diameter 4.50 mm 1005 Series Ronda and the Retrograde indicator atLongines Undercut Crown diameter 4. 50 mm yellow, medium pipe, wings with name, diameter 4. 50 mm, height of crown only 1. 80 mm, tap 0. 90 mm, total height of crown including pipe 3. 05 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 crystals may devalue your watch.