Seiko Caliber 1520B Watch Movement spare parts
Seiko Caliber 1520B Watch Movement Spare Parts
The Seiko Caliber 1520B is a vintage, manually wound mechanical watch movement manufactured by Seiko. It belongs to Seiko’s compact 1520 movement family and is notable for its slim, rectangular design, making it suitable for small, elegant wristwatches. The movement is particularly interesting to vintage watch enthusiasts and hobbyist watchmakers who restore and maintain older Seiko watches.
Technical specifications
– Manufacturer: Seiko
– Caliber: 1520B
– Movement type: Mechanical, manual winding
– Jewels: 17 or 23, depending on specification
– Frequency: 19,800 vibrations per hour
– Movement dimensions: Approximately 19.8 × 9.6 mm
– Movement thickness: 3.5 mm
– Escapement: Lever escapement
– Shock protection: Seiko Diashock
– Balance: Glucydur balance
– Functions: Hours and minutes
– Production period: Approximately 1972–1982
Seiko 1520B Spare Parts
Finding suitable replacement components is important when restoring a vintage Seiko 1520B movement. Depending on availability, watchmakers may require the following parts:
– Balance complete and balance staff
– Mainspring and barrel components
– Centre wheel and pinion
– Third wheel and seconds wheel
– Escape wheel and pallet fork
– Balance cock and pallet components
– Winding pinion and setting mechanism
– Crown stem and associated components
– Screws, jewels and other small movement parts
Restoration and maintenance
Before purchasing replacement parts, check the caliber marking and compare the original component with the replacement. Although the 1520A and 1520B belong to the same movement family, their specifications should not automatically be assumed interchangeable.
The Seiko 1520B remains an interesting movement for vintage watch restoration, particularly for collectors looking to preserve original Seiko mechanical watches.
For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]
Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
Mobile/WhatsApp: +91- 9841 360 340