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high failure rates
(buckle side) 75 mm / Thickness 3 mm
Weight (including strap): 78 g
which was being developed concurrently at Suwa Seikosha
design-conscious target group – “King Seiko with attitude” – but remained rare due to the high production costs and the parallel development of Grand Seiko
Seiko Bell-Matic Ref. 4006-6050 (Oktober 1974) GMT high failure ratesA rare and distinctive Seiko Bell Matic automatic wristwatch with a mechanical alarm, manufactured in October 1974. This series is among the most technically sophisticated vintage models of the 1970s and was one of the first automatic wristwatches in the world with an integrated alarm mechanism. Technical data Reference: 4006 6050 Serial number: 400135 (October 1974) Movement: Seiko Calibre 4006A, automatic winding with mechanical alarm, 17 jewels