Patek Philippe Aquanaut

Most Patek Philippe Aquanaut references take a 21 mm watch strap: 4 of 6.

Shop 19 mmShop 20 mmShop 21 mmShop 21 mmShop 24 mm

Patek Philippe Aquanaut lug width by case size

6 references measured; 31 more have an integrated bracelet. Updated 2026-10-29.

CaseLug widthReferencesWatch strap attachmentFor example
39 mm19 mm · 20 mm on 12—5268/200R-010
40 mm21 mm2—5261R-001, 5650G
41 mm21 mm2—5164G-001, 5650G-001

References that take a different watch strap

Every Patek Philippe Aquanaut reference