Specifications
- Movement
- Seiko 4R36, automatic with hand winding
- Case diameter
- 42.5 mm
- Lug-to-lug
- 46.0 mm
- Thickness
- 13.5 mm
- Crystal
- Hardlex
- Water resistance
- 100 m
- Weight
- 103 g
- Strap
- Silicone
- Lume
- LumiBrite on hands and indexes
- Features
- LIMITED EDITION on the case back, Screw case back, See-through case back, Serial number engraved on the case back, Unidirectional rotating bezel
- Series
- Seiko 5 Sports
Same case, other dials
Identical case, movement and dimensions; only the dial, bezel or finish differs.
Other watches on the 4R36
Questions
What movement is in the Seiko SRPH71?
The SRPH71 runs on the Seiko 4R36, an automatic movement that can also be wound by hand. See the 4R36 page for its specs and every watch built on it.
Does the Seiko SRPH71 have a sapphire crystal?
No. The SRPH71 has a Hardlex crystal. Hardlex is Seiko's hardened mineral glass: tougher than plain mineral glass, softer than sapphire.
How water resistant is the Seiko SRPH71?
100 m (10 bar). That covers swimming and snorkelling; it is not a certified diver's watch unless Seiko says so.