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Fig. 1

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Fig. 2

Hamilton 74 (ETA 2522)

sweep second
date: set by changing 20:40-24h

11.5''', Dm= 25.6mm, Do= 26.0mm
H= 4.5mm
F= 1.1mm
T= 1.7mm
17 jewels
f = 18000 A/h
power reserve 46h

Balance staff U2905

Stem W2919

1.50 x 0.90 x 0.21mm

Comments about the data

like ETA 2522, but Kif shock protection, different rotor shape, and anodized alumina barrel with life-time lubrication,
differences not known between 74, 624,
probably just the designators were changed in 1966, as samples with both numbers are known from this year

Example, year: signature; shock device
1966: HYL, Hamilton Watch Co. 623 (cal. 73 under balance), Swiss, 17 Jewels - Patented; Kif-Flector
(Hamilton 73)

Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft

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