Seiko 5 Sports SRPD55
Best for: The best student watch
8.0/10
Keep Score
- Crystal
- 1.3/2.5
- Serviceability
- 2.5/2.5
- Water resistance
- 1.1/1.5
- Warranty
- 1.05/1.5
- Strap standard
- 1/1
- Cost-to-keep transparency
- 1/1
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A genuine mechanical watch at a price most students can reach, on the caliber more American watchmakers have worked on than any other — and Seiko publishes $176 to overhaul it, so it is still serviceable in 2050.
100m covers rain, swimming and a spilled drink. 42.5mm across but only 46mm lug-to-lug, so it fits more wrists than the diameter suggests, on a 22mm strap width that costs almost nothing to change.
Hardlex rather than sapphire, so it will pick up marks that stay. Four years of student life will show on it, which is arguably the point.
The 4R36 is the most commonly serviced mechanical caliber in the United States and Seiko publishes a flat $176 price to overhaul it. That single fact does more for a twenty-year horizon than any spec on the case.
| Movement | Seiko 4R36, automatic with manual winding, 24 jewels |
|---|---|
| Power reserve | 41 hours |
| Case | 42.5mm stainless steel |
| Lug-to-lug | 46mm |
| Thickness | 13.4mm |
| Lug width | 22mm |
| Crystal | hardlex |
| Water resistance | 100m |
| Warranty | 3 years |
Specifications read from Seiko Watch Corporation product page, SRPD55.






