Seiko Prospex Monster
The original
- Price
- $550list price, 2026
- Case
- Steel
- Diameter
- 42.4 mm
- Lug to lug
- 49.4 mm
- Thickness
- 13.4 mm
- Lug width
- 20 mm
- Water resistance
- 200 m
- Crystal
- Hardlex
- Movement
- Seiko 4R36Automatic, 41 h reserve
Its homages
- In the database
- 8
- Price range
- $139–$379
- Cheapest
- 25% of the original's price
The fourth-generation Monster case, here in the PADI special edition, the Monster currently on Seiko's US site. Homages mostly copy the first-generation SKX779/SKX781 (7S26), which are linked here as the same line.
Homages by price
| Homage | Price from | Share of original | Dia. mm | L2L mm | Thick mm | WR m | Crystal | Movement |
|---|---|---|---|---|---|---|---|---|
Addiesdive AD2103 (Miyota 8N24) |
$139 | 25% | 42 (−0.4) | 47.5 (−1.9) | 13.7 (+0.3) | 200 | Sapphire | Miyota 8N24 |
Heimdallr Sharkey Ocean Monster |
$139 | 25% | 41.6 (−0.8) | 46.56 (−2.8) | 13.6 (+0.2) | 200 | Sapphire | Hangzhou 2553A |
Addiesdive AD2047 |
$149 | 27% | 42 (−0.4) | 47.7 (−1.7) | 13.7 (+0.3) | 200 | Sapphire | Seiko NH35A |
Addiesdive AD2103 (NH36) |
$149 | 27% | 42 (−0.4) | 47.7 (−1.7) | 13.7 (+0.3) | 200 | Sapphire | Seiko NH36A |
Islander Double Dome Automatic Dive Watch (NH36) |
$279 | 51% | 42 (−0.4) | 47 (−2.4) | 13 (−0.4) | 200 | Sapphire | Seiko NH36A |
Islander Double Dome Automatic Dive Watch (NH35) |
$299 | 54% | 42 (−0.4) | 47 (−2.4) | 13 (−0.4) | 200 | Sapphire | Seiko NH35A |
Islander Double Dome Automatic Dive Watch (Miyota 8205) |
$349 | 63% | 42 (−0.4) | 47 (−2.4) | 13 (−0.4) | 200 | Sapphire | Miyota 8205 |
Islander Random Monster |
$379 | 69% | 42.5 (+0.1) | 47.4 (−2) | 13.5 (+0.1) | 200 | Sapphire | Seiko NH38A |







