translate from honpo
"Omega seaming machine star professional clo no 2599-80 The "Omega seaming machine star" is known as the chronograph which the James bond wears in the movie 007 series. Seaming machine star 300M of fixed turn is the tough model of the professional Divers business which prevents the damage of wind prevention at the time of helium saturation diving with the structure which loads the helium escape valve. * High beat 28800 vibration calendar attaching inexpensive edition loading & opposite rotary prevention ベゼル & the sapphire crystal & one-touch release breath installing & HeGAS escape valve installing (the dummy) * there is a case back serial, * diameter: Approximately 42mm * thickness: 17mm & weight: Approximately 205 grams * clo no complete work 12 o'clock position 30 minute mileage recorder 6 o'clock position 12 hour mileage recorder 9 o'clock position second hand * as for waterproofing guarantee life waterproofing"
If You want to have better hands for Your avenger chrono, maybe this can help
please take a look
genuine
I ver. with good pearl (genuine dial) have minute hands shorter than genuine, second hand have shorter back
II ver. with bad pearl have good second hand but longer minute hand than genuine. And this ver. have better dial, bigger date window
I have 3 watches with old movement 7750 2 years old, and one with 7750 b1 28,8. never had any problem, Everytime when we have new watch with 7750 mov. I see ble ble ble about 7750 mov. Every mov. need oiled and need servis, it's only replica. The Zigmeister wrote evrything about this mov. please read.