Seiko Prospex Alpinist SPB317J1
Best for: The retirement watch we would give
9.6/10
Keep Score
- Crystal
- 2.5/2.5
- Serviceability
- 2.5/2.5
- Water resistance
- 1.5/1.5
- Warranty
- 1.05/1.5
- Strap standard
- 1/1
- Cost-to-keep transparency
- 1/1
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It suits every version of a retirement — golf, grandchildren, travel, the sea — because it is a 41mm, 12.3mm-thick watch that looks considered on a wrist and is rated to 200m with the ISO diver's marking.
Seiko publishes both an accuracy tolerance (+25 to -15 seconds a day) and the $296 cost of an overhaul about every three years, so the person you are giving it to knows exactly what it will ask of them.
This is where Seiko starts publishing an accuracy figure (+25/-15 seconds a day) and fits sapphire. A 6R35 overhaul is $296 against $176 for a 4R36 — a real difference, and one you can plan for.
| Movement | Seiko 6R35, automatic with manual winding, 24 jewels, +25/-15 sec per day |
|---|---|
| Power reserve | 70 hours |
| Case | 41mm stainless steel |
| Lug-to-lug | 46.9mm |
| Thickness | 12.3mm |
| Lug width | 20mm |
| Crystal | sapphire |
| Water resistance | 200m |
| Warranty | 3 years |
Specifications read from Seiko Watch Corporation product page, SPB317J1.



