Where can I get case parts for a dual-crown Super-Compressor?
A number of critical parts which are specific to the dual-crown S-Cs are nearly impossible to find. Crystals are specific to each case design, and there were many different styles. The internal bezel is held in place by the crystal and tension ring, and these were manufactured specifically for these watches. I have heard of instances where generic crystals were fitted, but with less than satisfactory results. The star gear which turns the bezel is not available. Cross-hatched crowns are not available. Generic crowns can be substituted, but value points will be deducted from any watch not having correct crowns. When considering any dual-crown S-C for purchase, make sure it’s complete and operating correctly. If you’ve got one that needs parts, you may have to find a parts-grade watch (maybe more than one) to get what you need.