Seiko Prospex Marinemaster 300M SPB183J1 vs Seiko Prospex 1965 Diver Re-creation SPB143
Side-by-side at a glance. Click a watch above to open the full reference page.
| Seiko SPB183J1 | Seiko SPB143J1 | |
|---|---|---|
| Model | Prospex Marinemaster 300M SPB183J1 | Prospex 1965 Diver Re-creation SPB143 |
| Caliber | Seiko Caliber 8L35 (automatic, in-house, 50-hour power reserve) | Seiko Cal. 6R35 -- in-house automatic, 28,800bph, 70h PR, 24j; hackable, manual-wind; upgraded from 6R15; used widely in Presage and Prospex lines |
| Case size | 44mm | 40.5mm |
| Lug-to-lug | 49.5mm | 46mm |
| Years produced | 2021–present | 2020–present |
| Brand tier | enthusiast | enthusiast |
| Era | modern | modern |
| Movement tier | Mid-supplier movement | Unclassified movement |
| Market median (excellent / full-set) | n/a | n/a |
| Typical range | n/a | n/a |
| Confidence | low | low |
| Categories | sport, dive | dive, sport |
| Editorial | yes | yes |
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Open the Seiko SPB143J1 reference page →
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