Solar diver comparison
Citizen Promaster Dive BN0151-09L vs Seiko Prospex Solar Diver (38.5 mm)
Verdict. Today the Citizen Promaster Dive BN0151-09L (BN0151-09L) is the better value by our formula: Value Score 100 vs 73, with 68 spec points at $337.50. The other watch costs $381.50 more. Prices as of November 3, 2026, 18:15 UTC.
Side by side
Citizen Promaster Dive BN0151-09L vs Seiko Prospex Solar Diver (38.5 mm): specs and price
| Spec |  Citizen Promaster Dive BN0151-09L BN0151-09L |  Seiko Prospex Solar Diver (38.5 mm) SNE597 · priced variant of 2 |
|---|---|---|
| Price on Amazon today | $337.50 | $719.00 |
| Value Score (within type) | 100 | 73 |
| Spec points | 68 | 78 |
| Spec points per $100 | 20.1 | 10.8 |
| Movement | Solar quartz (E168) | Solar quartz (V157) |
| Power reserve | — | — |
| Crystal | Mineral | Sapphire |
| Water resistance | 200 m ISO | 200 m ISO |
| Screw-down crown | Yes | Yes |
| Case diameter | 44 mm | 38.5 mm |
| Lug-to-lug | 48 mm | — |
| Thickness | 12 mm | 12.3 mm |
| Lug width | 20 mm | 20 mm |
| Fits wrist from | ≥ 17.3 cm (6.8″) | — |
| Strap / bracelet | Rubber | Steel |
| Made in | — | — |
| Amazon sales rank | #134 | #8,970 |
FAQ
Questions about the Citizen Promaster Dive BN0151-09L and the Seiko Prospex Solar Diver (38.5 mm)
Which is cheaper on Amazon today?
As of November 3, 2026, 18:15 UTC, the Citizen Promaster Dive BN0151-09L (BN0151-09L) is $337.50 and the Seiko Prospex Solar Diver (38.5 mm) (SNE597) is $719.00; the difference is $381.50. Amazon's price at checkout applies.
Context
Where both sit among solar dive watches
| # | Watch | Movement | Crystal | Water res. | Case diameter × lug-to-lug | Fits wrist | Spec pts | Price | Value Score | Buy |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | | Solar quartz (E168) | Mineral | 200 m ISO | 44 × 48 mm | ≥ 17.3 cm (6.8″) | 68 | $337.50 | 100 | Amazon |
| 2 | | Solar quartz (V157) | Sapphire | 200 m ISO | 38.5 mm | — | 78 | $719.00third-party | 73 | Amazon |
Amazon.com prices as of November 3, 2026, 18:15 UTC — details. third-party = sold by a marketplace seller, not Amazon (warranty may differ); ships later = not in stock today, never crowned best value.