Seiko 5619A Dual-Zone Timer Technical Data and Parts List
Technical data and parts list for the Seiko 5619A 23-jewel dual-zone timer watch—a 23-jewel caliber based on the Calibre 5860A automatic movement. This service manual provides complete specifications including case diameter of 25.60–27mm and maximum height of 4.25mm, along with details on the sweep second hand and sub-hour hand complications. The parts list covers every component with manufacturer part numbers, full nomenclature for movement and case assembly, and practical remarks on setting lever configurations keyed to dial diameter. Also includes date dial specifications for the 3 o'clock crown and date frame position, along with holding ring dimensions for dial installation (27.0mm outer diameter, 0.53mm thickness). Essential reference material for watchmakers, repair technicians, and those performing maintenance on this precision automatic timepiece.
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Document Details
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- Watchmaking