Certina DS-2 Super PH500M

Case Diameter: 43 mm
Case Height: 16 mm
Case length: 47.5 mm
Lug Width: 19.5 mm
Movement: Certina 25-652, 27j,
automatic,19,800 bph, 42 hr power
Case material: Stainless steel
Crown : Screw down
Bezel: Locking, push to turn,
bi-directional, indexed w/ 60 clicks
Water resistance: 500 meters
Vintage: '70s.

Similar to the DS-2 on the preceding
page, this is a later generation version
with an updated movement and locking
push to turn bezel. The method of sealing
the crystal is also different.
Push to turn bezel on top, older version on bottom.