some literature on the topic enjoy https://www.fratellowatches.com/how-a-speedmaster-and-a-flightmaster-ended-up-in-david-bowies-1979-lodger-album-art/
hi, i would like to ask a question anyone is able to tell if the back case of the 910 and 911 are interchangeables ? thank you
They are interchangeable as far as fit goes, and there is no outside visible difference. However the reference # for the appropriate watch is marked on the inside, so anyone opening it would know if a .013 (910) had been put on a .026 or.036 (911) or vice versa.
+have made some checks comparing 910 a 415.013 with 911 a 415.026 aesthetically they differ a lot, but dimensions are not so different case back diameter 910 (35mm) 911 (35mm) glass diameter 910 (37mm) 911 (36,6mm) case length 910 (52,5mm) 911(52,8mm) total thickness from case back to top glass 910 (16mm) 911 (15,7mm) case width 910 (43,5mm) 911 (43mm)
From the "flightmaster only" book Length lug to lug .013 (52.34mm); .026 (52.55) Width same at 43.10 Thickness excluding glass and caseback .013 (11.10) .026 (11.70) The other major difference is in the flat vs. curved crystal. Attachment to case is the same, very different in .036 The book is really ESSENTIAL if you want to know all the gritty details about flightmasters. It's the best investment I've made.
Great watches BTW. Looks like service pushers though. One of the numerous Omega crimes when sent to them for service
thank. you for posting, much more accurate those dimensions, i have to say i wrapped the points of the meassuring caliper in soft paper adhesive tape, hence the variations BTW....i decided to invest in a second flight, the book must wait regards
thank you for your observation could you please educate me in the significance of this ? is the service bezel and or hands wrong, incorrect, less valuable, better, a positive thing ? thank you
They are great looking watches, especially the tropical one, congratulations. Re the service parts...it’s no big deal, they are genuine replacement parts and should not impact your enjoyment from wearing them. Also I don’t believe it will have a material impact on the price if you needed to sell the watches.
oh, thank you very much for your kind words and detailed explanation, i had no idea of what “service parts” meant, else than replacements, and more important i am unable to tell that they are in fact service parts, so i was a bit surprised and thankful that someone could notice it from a photo i am fascinated with them, as you wisely mentioned the 910 is incredible, a bit irreal, the 911 is more sportive, more dramatic, i am so thankful to a friend that pointed me in their direction
I agree with "spacemission" on the service parts. While the service parts are genuine Omega parts, and routinely changed out at service by Omega, in some quarters it does make a difference in price/value. Maybe not right now, but it could be significant in the future. Just look at DON bezels, and other speedy parts. As the market stratifies "all original" takes on significance. One of the primary reasons you'll find OF members recommending against sending rare watches to Omega for service. Don't get me wrong, you should buy a watch because you enjoy it and not for future appreciation, however you never know. And don't even get me started on what Rolex does.
Also look at the zero in the 10 compared to 20, 30, 40, 50. They are not the same size in an original. Also look how pointy the hands are.