sw 4/10 Omega In-settings , upper / lower 330 340 350 470 490 500 600 610 613/ part 1341

Omega 330-1341 , chatons dessus / dessous

In-settings , upper / lower

Neuf de stock / New old stock (some sign of age due to long storage, see pics)

Omega part 330-1341

Same part for all Omega following calibers :

330 331 332 333 340 341 342 343 344 350 351 352 353 354 355 470 471 490 491 500 501 502 503 504 505 600 601 610 611 613