Live pricing is coming soon. Get notified when it is available for this reference.
Community + OSINT signals haven’t landed for this reference yet. We don’t publish a rating against zero signal — the number would mean nothing. Editorial body + caliber + market value still surface above; ratings appear once the signal corpus does.
The monobloc case with no separate screw-down caseback is the PloProf's defining (and hardest-to-fake) construction detail; any example with a conventional removable caseback is not a genuine PloProf.
| Area | What to check | What is correct | Red flag |
|---|---|---|---|
| case | Monobloc case construction | Single-piece (monobloc) case body with no separate caseback; commemorative Seamaster 75th-anniversary engraving on the case back-facing surface, not a removable screw-down disc | Conventional screw-down caseback that can be removed as a separate piece; visible caseback gasket seam typical of a two-piece case |
| case | Security pusher at 2 o'clock | Pusher must be pressed to unlock the rotating bezel before it will turn; pusher springs back cleanly and re-locks the bezel on release | Bezel rotates freely without pressing the pusher; pusher is stiff, missing, or purely decorative |
| crystal | Sapphire bezel insert with lacquered backing | Clear sapphire insert with blue lacquer applied to the underside, giving a glossy light-blue diving scale visible through the crystal | Solid-color insert (ceramic or aluminum) instead of clear sapphire over lacquer; lacquer showing bubbling, flaking, or uneven color |
| movement | Cal. 8912 no-date Co-Axial Master Chronometer | Cal. 8912 automatic movement with no date complication; METAS Master Chronometer certification; consistent with the monobloc case having no exhibition caseback to view the movement | Date window present on the dial; movement architecture inconsistent with the no-date Cal. 8912 |
