The rare Omega Speedmaster Schumacher Automatic Chronograph Collector Edition. 100% Original, Complete Collector Set with documents. Very rare model and very rare to get complete set in unworn watch condition. Mint Pre-owned Condition Full Set with Unique Exhibition Racecar wheel Case. Ref. 3510.6100, Caliber Omega 1143, case size 39mm. Chronograph, Tachymeter Function.