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And yes, there's the link lume. Because of the voids and the amount of space available on the dial for lume, the folks at Ming did the calculations for me and told me that there's 18 to 20 times the amount of lume on this watch than on the "Starlight" model I recently covered. That's a massive difference. I'd go out link for a cup of coffee around the corner, and after less than 5 minutes in the sun, the watch would have visible lume indoors for a remarkable amount of link time.

Be they spherical or cylindrical link these two pocket watches sport some serious spring and Jack uses the design of each as a starting point for a larger discussion of 19th-century precision watchmaking and a lot more. Click here to read link In-Depth Two Sweet Vintage Pocket Watches From Girard-Perregaux With Balance Springs link To Die For and here for Part 2.