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Return To ShopThe Seiko W309-4040 is a slim (2.45mm) self-winding mechanical watch movement used by renowned watch brands like Audemars Piguet, Vacheron Constantin, and Patek Philippe. This movement incorporates a suspended barrel and features manual finishing of the bridges, including polished bevels, satin-brushed edges, and Perlage on the recesses. It operates with automatic winding and is equipped with KIF shock protection. Additionally, this movement is designed without a second hand.
The Seiko W309-4040 features the following functions:
Part Description | Reference # | Alternate | Buy |
---|---|---|---|
BARREL ARBOR | 195/AP 2120 | Buy part | |
CENTER WHEEL | CENTER WHL/AP 2120 | CENTER WHL/AP 2120 | Buy part |
MAINSPRING | 770/V&C 21C | Buy part | |
STAFF, GENUINE | 723/1291 | Buy part | |
STEM, GENUINE | 401/742 | 401/742 | Buy part |
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