Selling: One Pocket Watch Crystal
Some sizes may be out of stock - SEE MY STORE for additional sizes and styles.
Listing more sizes soon. Message me if you are looking for a particular size not yet listed.
New Old Stock
Manufacture Size: Ligne 18 4/16 or 41.168
Digital Caliper size: 41.3 mm
Crystal Thickness: 0.8 mm
Height: Not listed on crystal
My Estimate: Size 4
My digital caliper measurement for Height: 3.1mm
Please Read Before Buying: Vintage watch crystals have many small variations. To get the perfect fit, you must measure your own pocket watch with a digital caliper before buying.
In my listings, you will see two different measurements:
The Photo: Shows the original manufacturer's size (in lignes and mm).
The Title: Shows my measurement using a modern digital caliper.
Important: The old factory size and the modern digital size often do not match. You must match your own digital caliper reading to the size listed in my title to ensure a correct fit.
Notes regarding Pocket Watch Height:
Pockets watch crystal are available from flat to highly domed and are numbered from 1 to 8. The higher the number, the higher the dome, so that a crystal with ‘1’ is the highest domed crystal and a crystal with ‘8’ is flat or almost flat (see reference photo)
Hunter case or thinner pocket watch - use low-domed crystals, usually from 5 to 8. The crystal must be high enough to clear the hands, but low enough to fit under the cover. The crystal used for this type is very thin and fragile so it should not be pressed in the middle when fitting, or even to close the door. Thicker hunter pocket watches generally use crystals 5 or 6.
Open Face pocket watch - require crystals with a higher dome, usually from 1 - 4. The crystal must be high enough to clear the hands.
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About Me:
"It’s not about having the right opportunities. It’s about handling the opportunities right." ~M. Hunter...
Growing up, handling things right was the only option my mother gave us, and I've carried that with me throughout my online selling career. With 18+ years of experience in vintage timepieces and horology parts, I built my business on one principle: doing things the right way. Inspired by my grandfather, a WWII-era watchmaker, I specialize in vintage watch parts, crystals, and horology books.
Every item is photographed and inspected by me—no stock images, no guesswork. I work to match the right parts for your needs, ensuring accuracy, fast shipping, and honest descriptions. Each order is more than a sale—it’s an opportunity to earn trust.
Thank you for viewing and considering the items I have listed.