Seiko 5 Sports Blue Dial Automatic Watch (SRPD51K1)

The Seiko 5 Sports SRPD51K1 is a modern reinterpretation of the iconic SKX diver, offering a bold blue sunray dial and a matching unidirectional rotating bezel. Powered by Seiko’s in-house 4R36 automatic movement, it features a day/date display, luminous hands and markers, and a see-through caseback. With its 100m water resistance and stainless steel construction, this timepiece combines everyday versatility with sporty aesthetics.

Features

Movement: Automatic with manual winding capability
Bezel: Blue unidirectional rotating bezel
Dial: Blue sunray finish
Calendar: Day/Date display
Second Hand: Silver-tone
Markers & Hands: Luminous (LumiBrite) for enhanced visibility
Caseback: Screw-down, see-through caseback

Technical Data

Case Dimensions:
Diameter: 42.5 mm
Thickness: 13.4 mm
Length (lug-to-lug): 46.0 mm

Movement:
Type: Automatic Caliber 4R36
Vibrations: 21,600 vibrations per hour
Jewels: 24 jewels
Power Reserve: Approximately 41 hours

Case Material: Stainless steel
Crystal Material: Hardlex mineral crystal
Water Resistance: 100 meters (10 bar)
Magnetic Resistance: 4,800 A/m
Dial Color: Blue
Strap: Stainless steel bracelet with tri-fold push-button clasp
Lug Width: 22 mm
Weight: 170.0 g