Found a deployment-buckle that looks exactly like the Hermes : r/AppleWatch
Hermès Ébène Barénia Deployment Buckle - Apple Watch Band
For Apple Watch Hermes 20mm 18mm Deployment Clasp Buckle
HERMES Original Signed Stainless Steel Deployment Buckle - $750 APR VALUE w/ CoA! ✓
Band Apple Watch Hermes Single Tour 44 mm Deployment Buckle - The Lux Group
Single Tour Leather Apple Watch Band, Deployment Buckle Clasp, Deep Brown Leather Watch Strap - Etsy
Band Apple Watch Hermès Single Tour 41 mm Deployment Buckle Kilim | Hermès USA
☺️ The 44mm Hermès Silver Stainless Steel Case with Single Tour Deployment Buckle. Been saving a while for it. Happy (early) birthday to me ⌚️ : r/AppleWatch