Hamilton caliber 748 is U.S.A movement from 1940s.
Functions: sub second
Manual-winding movement with 18 jewels.
F = 18000 A/h
Power reserve: N/A
Diameter: 23.2 mm
More information:
Hamilton Grade 748 is a direct drive center seconds watch movement. The time train is of unique design to provide more rugged, trouble-free operation. No stabilizer spring is employed. As in all Hamilton watch movements, the bridges and pillar plate of Grade 748 are made of nickel-silver and rhodium-plated. Steady pins in bridges and balance cock are of the integral type. Because the movement is round, a case alignment slot has been provided in the pillar plate to assure accurate and positive location of the movement in the watch case.
Hamilton Grade 748, like its companion movement, Grade 747, is a thoroughly engineered American timepiece. It is a fine looking movement and made to Hamilton’s standards of quality. Moreover, it is an easy movement to service or repair.
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