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Seiko S-450, S-451 pressure tester button
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This is a replacement for the often missing watch holder button on S-450 pressure testers on sale.
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Updated at source:
Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Public Domain
Seiko S-450 / S-451 are professional watch dry pressure testers that sometime show up on eBay auctions. Often they are missing parts, like the o-ring seal and air compressor. But also the support button that helps prop up the watch being tested against the sensor.
If you are lucky enough to get your hands on one, these are the other modifications I had to make:
O-ring seal OD 110mm, ID 99mm 5mm height
1/8 inch BSP, BSPT to Schrader valve
Xiaomi Portable Electric Air Compressor 2 Pro
PTFE sealing tape for the valve