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SRP523 Automatic Watch

The Seiko SRP523 is a 42mm men's automatic watch with a stainless steel case and a black analog dial protected by hardlex crystal. It uses a 4R36 caliber self-winding mechanical movement that can be manually wound and hacked (the second hand stops when the crown is pulled out). It ticks 6 times per second which gives the second hand a smoother movement than a quartz watch which ticks once per second. The watch should run for up to 41 hours when fully wound and will self-wind when moved.

Model nr. SRP523
Brand Seiko
Gender Men's
Type Automatic
Caliber 4R36
Beats per Hour 21,600 bph
Manual Winding Yes
Hacking Yes
Power Reserve 41 Hours
Instructions Owner's Manual
Crown Position 03:00
Case Width (mm) 42
Case Thickness (mm) 12
Case Shape Round
Case Material Stainless Steel
Crystal Material Hardlex
Water Resistance (meters) 100
Screw Down Crown No
Second Crown No
Moonphase No
Day Window Yes
Date Window Yes
Time Types Hours, Minutes, Seconds
Band Material Nylon
Band Color Black|Yellow
Replaceable Band Yes
Band Width (mm) 22
Dial Color Black
Hour Markings Arabic Numerals, Triangles
Bezel Function Fixed
Bezel Material Stainless Steel
Bezel Color Gray
On the Bezel 24 Hour Time
Inner Bezel
Inner Bezel Color Black
On Inner Bezel Minute Numbering
Hand Colors
Hour Hand White
Minute Hand White
Second Hand Yellow