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13''', Dm= 29.0mm, Do= 29.35mm
f = 18000 A/h
power reserve 44h
Balance staff U2460
Mainspring / battery
Zf1250, 1.50 x 11.5 x 0.13 x 360mm
1.50 x 0.79 / 0.22mm
Comments about the data
The base calibre was passed from Election to Marvin ca. 1960, and finally to Longines in the late 60s. As many parts are interchangable, below the variants of all three manufacturers are listed.
875: 18000 A/h, fixed stud carrier
875: 18000 A/h, mobile stud carrier, detail modifications
885: 21600 A/h, mobile stud carrier
700: 18000 A/h, mobile stud carrier
700C: 18000 A/h, mobile stud carrier, date
490: 21600 A/h, mobile stud carrier
Example, year: signature; shock device
ca. 1950: Election ***, Election, 805, Swiss Made, 17 Jewels
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.
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