SEIKO ESSENTIALS SRPH87

From the Essentials Collection

Automatic with manual winding capability

21,600 vibrations per hour

Power reserve: approximately 41 hours

23 jewels

Blue sunray dial

Date calendar

Screwdown see-through caseback

Case diameter: 41.2mm

Stainless steel case and bracelet

Tri-fold push button release clasp

Water resistant to 10 bar, 100 meters (330 feet)

Caliber 4R35