Genuine Omega vintage crowns for the 1960's Speedmasters. First, MWO type B1 new-old-stock/unused. 6.7mm diameter x 3.8mm 32 teeth for 1960's references £120 each + £10 worldwide tracked shipping (net) : Next is MWO type B2 New-old-stock/unused 6.7mm x 3.8mm 32 teeth for 1960's references. £95 each + £10 tracked shipping worldwide (net) : Lastly MWO type A2 in used condition. 6.5mm x 3.8mm 24 teeth for 145.022-69 and -71 £50 + £10 tracked world shipping (net.) : Many thanks.