Seamaster family · 99 references Omega

Seamaster 'Ploprof'

Name: Omega Seamaster 'Ploprof'
Brand: Omega
Availability: InStock

55mm

Low $6,289

Median $8,393

High $9,911

Search Seamaster 'Ploprof' Listings

The Omega Seamaster Ploprof looks peculiar until you start using it: the left-hand crown stays away from your wrist, while the prominent button unlocks the rotating bezel. Its name contracts “plongeur professionnel”—professional diver—and its ungainly charm comes from engineering that never tried to disguise itself.

The original Seamaster 600, reference 166.077, arrived in 1970 with a monobloc case designed to resist helium ingress rather than vent it. Choose that generation for the uncompromising construction and period character. The 2009 Seamaster 1200 revival brought the automatic caliber 8500 and a helium escape valve; later titanium versions with caliber 8912 make this substantial design considerably easier to wear.

Try one on before assuming the dimensions tell the whole story: its width includes the protective hardware. Pay particular attention to the bezel-lock button and crown assembly—both should operate properly, because these distinctive controls are central to the watch’s function, not decorative flourishes.

MovementAutomatic

Case Size55mm

What owners love

The unique case design and massive presence make it instantly recognizable and unlike anything else, earning it a cult following among dive watch enthusiasts.
The bezel locking mechanism and push-button crown guard system are praised for their purposeful engineering and robust feel, setting it apart from typical dive watches.
The exceptional water resistance and genuine professional dive credentials give it real-world legitimacy that few modern watches can match.

Common Criticisms

The sheer size and weight make it impractical for daily wear and uncomfortable on smaller wrists.
The integrated bracelet and lug design severely limit strap options, frustrating owners who like to customize.
The thickness makes it difficult to fit under sleeves, so it stands out awkwardly with most clothing.

Seamaster 'Ploprof'

What owners love

Common Criticisms

Reviews & Videos

Right Now on eBay

Recent Forum Listings

Seamaster References at a Similar Price

Other Omega Models