Seiko Prospex Marinemaster 1968 Heritage Diver
The original
- Price
- $3,600list price, 2026
- Case
- Steel
- Diameter
- 42.6 mm
- Lug to lug
- 49.3 mm
- Thickness
- 14.1 mm
- Lug width
- 20 mm
- Water resistance
- 300 m
- Crystal
- Sapphire
- Movement
- Seiko 8L45Automatic, 72 h reserve
Its homages
- In the database
- 4
- Price range
- $139–$269
- Cheapest
- 4% of the original's price
The current Marinemaster 300m, based on the 1968 Hi-Beat 300m diver like the SBDX001 (seiko-marinemaster-300-sbdx001).
Homages by price
| Homage | Price from | Share of original | Dia. mm | L2L mm | Thick mm | WR m | Crystal | Movement |
|---|---|---|---|---|---|---|---|---|
Addiesdive H7 |
$139 | 4% | 44 (+1.4) | — | 17 (+2.9) | 300 | Sapphire | Seiko NH35A |
San Martin SN079 44mm |
$209 | 6% | 44 (+1.4) | 51 (+1.7) | 13.5 (−0.6) | 200 | Sapphire | Seiko NH35A |
San Martin SN086 44mm |
$268 | 7% | 44 (+1.4) | — | 13.5 (−0.6) | 300 | Sapphire | Seiko NH35A |
San Martin SN087 44mm |
$269 | 7% | 44 (+1.4) | 50.5 (+1.2) | 14.2 (+0.1) | 300 | Sapphire | Seiko NH35A |
Sources
- Seiko US, Prospex HBF001J1
- Monochrome, Seiko Prospex revamps the Marinemaster with the 1968 Heritage Diver HBF001 (2026, permanent collection)



