The original MK1 type model of the Omega Speedmaster Ref.2915-1 that exists at present is really increasing in price and popularity. The broad arrow hands really feel set within a 1000 tachymeter bezel, and the current estimate is already substantial, but seeing as there are so few of them, their price will more than likely go up in the future.

Cf :​ ​christies.com

Omega Speedmaster, Broad Arrow Model, Ref.2915-1, Movement No. 15’499’398, Manufactured in 1957

Estimate: CHF 90,000 - CHF 140,000