in 3 offers
The lowest price for Seiko SPB321J Prospex "King Sumo" Divers Men's right now is $1,593.59 at eBay.com.au, compared across 3 retailers.
The all-time low was $918.22 on 31 May 2026 — today's price is 74% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 29 Oct 2026.
Seiko SPB321J Prospex "King Sumo" Divers Men's
Last updated at 29/10/2026 10:01:57
Seiko Sumo Prospex Automatic Diver's 200m Men's Watch Spb321j1
Free delivery
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SEIKO WATCH AUTOMATIC PROSPEX SUMO 45MM SPB321J1 - Vincent Watch
Delivery $39.59
Seiko Prospex SPB321J Steel 45mm 2026
Delivery $47
| Brand | Seiko |
| Style | Bracelet |
| Water Resistant | Yes |
| Watch Movement | Mechanical |
| Mechanical Movement | Automatic |
Seiko Sumo Prospex Automatic Diver's 200m Men's Watch Spb321j1
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
SEIKO WATCH AUTOMATIC PROSPEX SUMO 45MM SPB321J1 - Vincent Watch
Delivery $39.59
Seiko Prospex SPB321J Steel 45mm 2026
Delivery $47
| Brand | Seiko |
| Style | Bracelet |
| Water Resistant | Yes |
| Watch Movement | Mechanical |
| Mechanical Movement | Automatic |
