SpecStudio
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Seiko SRP779
Stock unknown
Case
- Diameter
- 45mm
- Thickness
- 13.4mm
- Lug width
- 22mm
- Material
- Stainless Steel
- Water resistance
- 200m
- Caseback
- Solid
Crystal & dial
- Crystal
- Hardlex
- Dial colour
- Black
Movement
- Caliber
- Seiko 4R36
- Type
- Automatic
- Power reserve
- 41h
- Jewels
- 24
- Hacking
- Yes
- Hand-winding
- Yes
Seiko
Seiko's day-date automatic caliber and the in-house branded version of the NH36 with stricter quality control and finishing. The additional day wheel over the 4R35 adds the day-of-week complication without changing the movement dimensions. Found extensively in the Seiko 5 Sports and Prospex lines, it offers Seiko's proven reliability with the convenience of day-date display at a mainstream price point.
Prospex collection · 4 watches
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Seiko on the secondhand market
+8.1%
2026 so far · +3.6% to +12.7% · 80 matched watches
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In a nutshell
The Seiko SRP779 is an automatic watch, with a 45mm stainless steel case, 13.4mm thick, powered by the Seiko 4R36 movement and a 41-hour power reserve. Water resistance is rated to 200m, under a hardlex crystal.
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