$60.00
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The Seagull ST3620 Hollow is a China-made mechanical hand-winding movement designed as an aftermarket-compatible alternative to ETA 6497–style movements. Featuring a skeleton (hollow) design, it allows clear visibility of the gear train and balance, making it a popular choice for display watches, custom builds, and movement replacements where an open-worked aesthetic is desired.
This calibre follows the classic 6497 layout with small seconds at 9 o’clock, offering a traditional pocket-watch–inspired architecture adapted for modern wristwatch use. Each unit is supplied brand new, includes a winding stem, and is packed securely with SOFLY protective packing.
