Landeron 13 (13''')

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Example movement: Signed Brevet and "53" on the dial side, flat balance hairspring. Aprox: 1940. Technical data: Landeron 13 17 jewels, manual wind single pusher chronograph, pilla r wheel, 60 s, 30 min, sub second. Size: 13''' 29.6 mm. H: = 6.20 mm. N: = 18.000 A/h. Power reserve: 42 h. Mainspring: 1,35 x 12 - 0,14 - 400 (Prima: 135 U 40). Versions: 11: - 13: stronger mainspring. Show more