






Seiko Prospex SPB301J
Description
The Seiko Prospex SPB301J is a men’s automatic dive watch from the Sea collection, created as the 1970 Diver’s Modern Re-interpretation Save the Ocean Special Edition. It features a white textured dial inspired by icy polar seascapes, a curved sapphire crystal with anti-reflective coating on the inner surface, and LumiBrite treatment on the hands, indexes, and bezel for strong underwater legibility. The 42.7mm stainless steel case is paired with a stainless steel bracelet and powered by Seiko’s 6R35 automatic movement with manual winding, date display, stop-seconds function, and approximately 70 hours of power reserve. Built for serious aquatic use, it offers 200-meter diver’s water resistance, a unidirectional rotating bezel, screw-down crown, and screw case back.
- Model Number: SPB301J
- Movement: automatic
- Case Size (mm): 42.7
- Gender: male
- Bezel Material: stainless steel
- Case Back: engraved
- Case Shape: cushion
- Clasp Type: double fold
- Color: White
- Complications: date
- Crystal: sapphire
- Decorations: engraved case back
- Dial Features: date window, luminescence, textured
- Dial Indicators: indicators
- Dial Material: textured
- Display: analog
- Jewel Count: 24
- Limited Edition: No
- Material: stainless steel
- Power Reserve Hours: 70
- Production Year: 2022
- Strap Type: stainless steel
- Style: dive
- Technical Features: hacking seconds, anti reflective coating
- Water Resistance (ATM): 20.0






