Comparing Steeldive SD1975J and SD1952: Dive Watch Showdown

Steeldive SD1975J · Great Wave Tuna Diver Watch

  • Price: $250
  • Water Resistance: 300m
  • Movement: Seiko NH35 automatic
  • Case Diameter: 44mm
  • Bezel: Unidirectional ceramic bezel

Steeldive SD1952 · 50-Fathoms Mechanical Watch

  • Price: $280
  • Water Resistance: 200m
  • Movement: Seiko NH35 automatic
  • Case Diameter: 42mm
  • Bezel: Unidirectional ceramic bezel


  • The SD1975J has a higher water resistance of 300m compared to 200m for the SD1952.
  • The SD1975J has a larger case diameter of 44mm, while the SD1952 has a 42mm case diameter.


  • Both watches are equipped with the Seiko NH35 automatic movement.
  • Both watches feature unidirectional ceramic bezels.
Comparing Steeldive SD1958V and SD1953: A Detailed Review of Two Watches