Omega - 224.30.55.21.04.001

Seamaster PloProf Co-Axial Stainless Steel / White / Shark

Brand: Omega
Family: Seamaster PloProf
Reference: 224.30.55.21.04.001 (aka: 22430552104001)
Name: Seamaster PloProf Co-Axial Stainless Steel / White / Shark
Produced: 2009
Limited: No

Case

Material: Stainless Steel
Bezel: Rotating, 0-60 (Dive)
Glass: Sapphire
Back: Closed
Shape: Other
Diameter: 55.00 mm
Lug Width: 24.00 mm
W/R: 1200.00 m

Dial

Color: White
Indexes: Stick / Dot
Hands: Sword
224.30.55.21.04.001 : Omega Seamaster PloProf Co-Axial Stainless Steel / White / Shark

Price in euro

Description

The Ploprof’s case, like that of its predecessor, cannot be mistaken for that of any other watch: the screwed-in crown is located at 9 o’clock under a protective buffer and, as with the original Ploprof, it allows freer wrist movement and prevents unintended manipulation.

The time and date adjustments are made by unscrewing the crown to release the protective buffer and then pulling the crown to the appropriate position. The Co-Axial calibre 8500 makes it possible to adjust the hour hand separately to accommodate different time zones or for the changes to daylight savings and back to standard time.

At the 2 o’clock position is the Ploprof’s characteristic bezel-release security pusher with an orange anodised aluminium ring. Pressing the pusher allows the bezel to be rotated in either direction and then locked firmly in position, ensuring that it cannot be accidentally shifted during a dive. The Ploprof has an automatic helium escape valve located on the side of the case at the 4 o’clock position. This feature allows helium atoms to escape during decompression, and is particularly useful for professional divers operating from diving bells.

The Omega Seamaster Ploprof 1200M bears a strong physical resemblance to its famous ancestor and it carries on the traditions of robust reliability and water resistance which have always defined Omega’s divers’ watches. But there are also some remarkable improvements: for example, the watch is driven by the Omega Co-Axial calibre 8500 with a free sprung balance. This movement, launched in 2007, was created from inception by Omega and is one of the key elements in the revolution in mechanical watchmaking which has been taking place at the company since 1999.

Seamaster ref: 224.30.55.21.04.001

Movement

Omega caliber 8500 The in-house caliber 8500 was introduced in the 2007 De Ville Hour Vision. Its two barrels provide a total of 60 hours of power reserve. Version 8501, for use in gold watches, features a solid gold rotor.

Since 2015 certain watches containing this movement may carry the 'Master Co-Axial Chronometer' on the dial.

Type:Automatic
Brand:Omega
Caliber:8500
Display:Analog
Diameter:29.00 mm
Jewels:39
Reserve:60 h
Frequency:25200 bph
Time:Hours, Minutes, Seconds
Date:Date
Additionals:Chronometer, Co-Axial Escapement

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