Seiko SPB421
More Seiko market data- Brand
- Seiko
- Model
- SPB421
- Reference
- 62MAS Special Edition
- Dial
- Black
- Bracelet / strap
- Multiple (Stock, OEM, Crafter Blue Rubber)
- Status
- Available
Watch listing
Seiko SPB421
Seiko SPB421 listing with structured specifications, pricing, condition, and market context.
Updated Jun 12, 2026
![[WTS] Seiko SPB421 62mas special edition (w/extras) 850 image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tplcad%2F2b46a9a4b91592d50dcea105af548e7f73dfbb646bf026d6f327a57aba5cd5b6.jpg&w=3840&q=75)
![[WTS] Seiko SPB421 62mas special edition (w/extras) 850 image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tplcad%2Fd1b40f85f8f8e98e263c2cceeb606c7b29cf6525629f7e2ba6db5ead03e5ff73.jpg&w=3840&q=75)
![[WTS] Seiko SPB421 62mas special edition (w/extras) 850 image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tplcad%2F71c921756d529df375a88646edb5a9c473fc26214d0914c6067d81af646b206c.jpg&w=3840&q=75)
![[WTS] Seiko SPB421 62mas special edition (w/extras) 850 image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tplcad%2F5f285579826960a8a137474be567c9632dfd8f0fe2e95e6192b5672751eaf867.jpg&w=3840&q=75)
![[WTS] Seiko SPB421 62mas special edition (w/extras) 850 image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tplcad%2F598448653c0b7a606732462eda3be66c30fe5bae969248e3e95f7f5be428bdfd.jpg&w=3840&q=75)
![[WTS] Seiko SPB421 62mas special edition (w/extras) 850 image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tplcad%2F274c08b10424689aed8801607f201bad43086bde854a9a0bf215002790b5a8f5.jpg&w=3840&q=75)
Observed asking price
Price not stated
Status: Available
At a glance
- Listing type
- For sale
- First observed
- May 27, 2026
- Watches
- 1
- Photos
- 8
Structured details
Watch details
Listing notes
[WTS] Seiko SPB421 62mas special edition (w/extras) 850
Source and availability
Watchtrader structured this page from an observed Reddit community listing. Asking prices, condition, and availability can change after publication; verify the details with the original source before relying on them.
View original Reddit listingMore from this brand
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