What does it mean when a watch has 21 jewels, and what is their functionality in the watch movement? - Quora
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MWC 1940s to 1960s Pattern General Service Watch with 24 Jewel Automat – Military Watch Company (MWC)
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Amazon.com: Swiss Stainless Steel Watch Precise 21-Jewel Tourbillon Automatic Movement Waterproof Watches for Men (Gold) : Clothing, Shoes & Jewelry
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Amazon.com: Ewatchparts Genuine Compatible with ETA 2824-2 Automatic Watch Movement 25 Jewel Date @3 Gold New Swiss Made : Ewatchparts: Clothing, Shoes & Jewelry
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ELVIA Automatic Military Divers Watch with Sapphire Crystal and 24 Jew – Military Watch Company (MWC)
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The Number Of Jewels In A Watch Movement Indicates Value, Or Does It It? A Myth Debunked - Reprise - Quill & Pad
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