Omega Caliber 26.5 T3 PC T1 Ref.2450 5

Omega manual winding, caliber 26.5T3PCT1, 15 jewels, 18000 bph,  ref.2450 5, circa 1946.

Omega Arabic Index Caliber 30 T2 PC

Omega Small Second Arabic Index, caliber 30T2PC, 17 jewels, 18000 bph, ref 2536-1, circa 1945.

Omega Manual Winding 9K Caliber 266

Omega Small Second, Dennison Case 9K 13322, manual winding caliber 266, 17 jewels, 18000 bph, circa 1954.

Omega Caliber 26.5 T3.PC T1, Ref 2165-2

Omega Small Second, manual winding movement caliber 26.5 T3.PC T1, 15 jewels, 18000 bph, ref 2165-2, circa 1948.