Lug-to-lug 50.5 mm 1.99 in
Case 41 mm 1.61 in
Thickness 10.5 mm 0.41 in
Lug width Not provided Not provided
Wrist fit analyzer
Fit reference
Flat wrist width54.1 mmFit ratio0.93
Too smallIdealLargeToo large
Large
Likely to wear near the wrist edge; case shape and strap angle matter.
Sources
- https://watch.the1916company.com/videos/audemars-piguet-royal-oak-15500st-oo-1220st-01
The 1916 Company review states 10.5 mm thickness and 50.5 mm lug-to-lug.
- https://wynnandthayne.com/products/audemars-piguet-royal-oak-41mm-ref-15500st-oo-1220st-04-white-dial-2022-w-box-papers
Wynn & Thayne lists 41 mm diameter, 10.4 mm thickness, and 50.5 mm lug-to-lug for the 15500ST family.
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