I had a phase trying to find the perfect brown rubber strap for the NTTD Seamaster, which I still am not convinced I have, so these are all available for sale. I will say, both the Zulu and Feynman feel and look great, just weren’t the color I needed. Feynman – 20mm, FKM, 117x90mm with buckle, fit to watch once, retail $97 (sold out) - $60 here Zuludiver 400 – Italian rubber, coffee brown, 20mm, cut a few notches 150mm with clasp, fit to watch once and stickers still on clasp, retail $128 - $90 here Horus – espresso brown, 20mm, retail $75 - $20 here Bundle all 3 - $150