Omega® Crown (Waterproof), fits Omega Case Number 186.1999, 186.2000 Eterna 1401 Generic (not original) sapphire crystal

Generic (not original) sapphire crystal with calendar bubble

* Perrin Supply Ltd is independent of and not affiliated with or sponsored by Rolex®

Threaded Rod 9 1/2" is a 4 mm threaded weight shell rod that measures 9 1/2" in length specifically for Grandmother clocks

1980076150

10 mm is most commonly used for older clocks with wooden pulleys

Omega® Crown (Waterproof), fits Omega Case Number 186.1999, 186.2000 Eterna 1401 Generic (not original) sapphire crystalOmega Crown (Waterproof), fits Omega Case Number 186. 1999, 186. 2000 Omega Titanium Waterproof Crown, 3 rings, diameter 6. 00 mm, fits tube 2. 50 mm, total height 4. 80 mm, flush pipe, tap 0. 90 mm. Fits Omega case numbers: 1861999, 1862000 *Perrin Supply Ltd is independent of and not affiliated with or sponsored by Omega. Omega warranty does not apply to parts supplied byPerrin Supply Ltd. Using generic parts may devalue your watch.