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Omega Seamaster PloProf
Baby Ploprof splendido baby ploprof
$3,339
Excl. shipping
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Omega Seamaster PloProf
Certified
Grey 1200m 55mm Automatic Titanium 227.90.55.21.99.001 Mesh
$8,999
+ $64 for shipping
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Omega Seamaster PloProf
オメガ OMEGA 224.32.55.21.01.001 シーマスター プロプロフ 1200M 自動巻き メンズ 800714 中古
$5,811
+ $67 for shipping
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Omega Seamaster PloProf
Plongeur De Luxe Jacques Mayol 120 Aankoopbewijs en originele papieren aanwezig !
$3,769
Excl. shipping
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Omega Seamaster PloProf
Certified
227.32.55.21.03.001 Seamaster Ploprof 1200M Summer Blue
$14,000
+ $50 for shipping
Promoted
Omega Seamaster PloProf
Certified
1200m 227.90.55.21.04.001
$12,211
Free shipping
Omega Seamaster PloProf
2024 New Seamaster Ploprof 1200M Blue Dial Stainless Steel 55 x 45 mm
$13,585
Free shipping
Omega Seamaster PloProf
Certified
1200M White Dial 224.30.55.21.04.001
$6,499
+ $49 for shipping
Omega Seamaster PloProf
Certified
1200m Omega Seamaster PloProf Summer Blue 1200m
$12,950
Excl. shipping
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Omega Seamaster PloProf
Certified
Ref: 166.077
$7,550
Free shipping
Omega Seamaster PloProf
Certified
224.32.55.21.01.001
$7,867
Free shipping
Promoted
Omega Seamaster PloProf
166.0250 with Extract from the Archives
$5,164
Excl. shipping
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Omega Seamaster PloProf
Révisée par OMEGA
$7,000
Excl. shipping
Private Seller
Omega Seamaster PloProf
Certified
600M Vintage : 166.077 : Steel
$9,490
+ $50 for shipping
Omega Seamaster PloProf
120 Baby Ploprof
$5,218
Excl. shipping
Private Seller
Omega Seamaster PloProf
オメガ OMEGA 224.32.55.21.01.002 シーマスター プロプロフ1200M 自動巻き メンズ 845611 中古
$6,373
+ $67 for shipping
Omega Seamaster PloProf
Certified
55MM 166.0077 STAINLESS STEEL MEN'S WATCH
$8,772
+ $79 for shipping
Omega Seamaster PloProf
600 PLOPROF Ref 166-077 Stainless Steel Extract of the Archives Bj-1972
$16,133
+ $592 for shipping
Omega Seamaster PloProf
166.077 Ploprof complete set
$8,156
Excl. shipping
Private Seller
Omega Seamaster PloProf
Certified
1200M Chronometer in Titanium on Titanium Bracelet with Black Dial and Orange Accents
$10,400
+ $150 for shipping
Omega Seamaster PloProf
Plongeur De Luxe Jacques Mayol 120
$3,511
+ $92 for shipping
Omega Seamaster PloProf
1200m Steel Mens Watch 224.32.55.21.01.002 Card
$7,870
+ $70 for shipping
Omega Seamaster PloProf
166.077
$9,693
+ $162 for shipping
Omega Seamaster PloProf
オメガ OMEGA 166.0250 シーマスター ベビープロプロフ デイト Cal.1010 自動巻き メンズ 792246 中古
$4,197
+ $67 for shipping
Omega Seamaster PloProf
224 32 55 21 01 002 メンズ
$6,623
Free shipping
Omega Seamaster PloProf
Vintage COMEX PLOPROF SEAMASTER Ref ST166077 PROTOTYPE Bj-1970 COMEX Paperwork
Price on request
+ $431 for shipping
Omega Seamaster PloProf
Certified
1200m Titanium 55x48mm 227.90.55.21.04.001 Full Set
$9,750
Free shipping
Omega Seamaster PloProf
Certified
227.90.55.21.99.002
$12,950
+ $55 for shipping
Omega Seamaster PloProf
600
$7,754
Excl. shipping
Private Seller
Omega Seamaster PloProf
Certified
55 mm Stainless Steel - Blue Dial - Bracelet 166.0077
$8,705
Free shipping

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Omega Seamaster PloProf
Plongeur De Luxe Jacques Mayol 120
$5,169
+ $162 for shipping
Omega Seamaster PloProf
Certified
FULL SET
$9,699
+ $49 for shipping
Omega Seamaster PloProf
224.32.55.21.01.002 February 2012
$9,639
+ $124 for shipping
Omega Seamaster PloProf
Certified
1200M Dive Watch FULL SET Ref 22790552104001 Automatic
$9,450
+ $99 for shipping
Omega Seamaster PloProf
オメガ OMEGA 166.0250 シーマスター ベビープロプロフ デイト 自動巻き メンズ 830759 中古
$4,197
+ $67 for shipping
Omega Seamaster PloProf
1200M Co-Axial Master Chronometer UNWORN Full Set 227.90.55.21.99.001
$10,875
Free shipping
Omega Seamaster PloProf
Baby PloProf
$3,908
Excl. shipping
Private Seller
Omega Seamaster PloProf
120 M Jaques Mayol Plonger
$4,642
Excl. shipping
Private Seller
Omega Seamaster PloProf
Full Set Sammlerzustand collector´s condition like new
$10,608
Excl. shipping
Private Seller
Omega Seamaster PloProf
600 Ref. 166.077 mit Omega Service
$12,766
Excl. shipping
Private Seller
Omega Seamaster PloProf
166.077
$10,123
+ $162 for shipping
Omega Seamaster PloProf
227.90.55.21.04.001
$9,173
+ $132 for shipping
Omega Seamaster PloProf
166.0251
$5,008
Excl. shipping
Private Seller
Omega Seamaster PloProf
1200m Set complet édition 75th anniversary jamais déballée.
$20,462
Excl. shipping
Private Seller
Omega Seamaster PloProf
120 'Baby Ploprof'
$9,658
Free shipping
Omega Seamaster PloProf
1200m 224.30.55.21.01.001
$8,008
+ $290 for shipping
Omega Seamaster PloProf
1200m Automatic Co-axial Full Set
$8,939
+ $108 for shipping
Omega Seamaster PloProf
120 Baby PloProf Vintage 166.0250
$5,276
+ $139 for shipping
Omega Seamaster PloProf
Certified
166.0250 Seasmaster Baby Ploprof Pre-Owned Watch Only
$6,900
+ $50 for shipping
Omega Seamaster PloProf
224 32 55 21 04 001 メンズ
$7,006
Free shipping
Omega Seamaster PloProf
1200M Coaxial Chronometer 224 32 55 21 01 002 Men's Watch Date Black Automatic
$7,265
Free shipping
Omega Seamaster PloProf
MK1 1972 Omega Seamaster Proplof
$8,490
Excl. shipping
Private Seller
Omega Seamaster PloProf
600 "PloProf" Iperbarico Ref. 1660077
Price on request
+ $215 for shipping
Omega Seamaster PloProf
Ref.166.077 estratto d'Archivio anno 1971
$10,339
Excl. shipping
Private Seller
Omega Seamaster PloProf
"BABY PLOPROF" DIVER Automatic vintage Swiss watch Ref. 166.0250 Cal. 1010
$4,938
+ $173 for shipping
Omega Seamaster PloProf
Baby Ploprof Omega Seamaster "Baby Ploprof" ref : 1660250
$5,331
Excl. shipping
Private Seller
Omega Seamaster PloProf
Summer Blue
$21,539
Excl. shipping
Private Seller
Omega Seamaster PloProf
Baby Ploprof
$4,705
+ $1,077 for shipping
Omega Seamaster PloProf
224.30.55.21.04.001
$7,106
+ $269 for shipping
Omega Seamaster PloProf
472 OMEGA オメガ 腕時計 2021年並行品 シーマスター プロプロフ 1200M 224.32.55.21.04.001 ステンレススティール/ラバーストラップ ホワイト文字盤 自動巻き (2148103755927)
$6,756
Free shipping
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Omega Seamaster Ploprof: Distinctive Diving Watch

The Omega Seamaster Ploprof is one of the world's most idiosyncratic diving watches. With its angular case, unique bezel lock, and massive crown guard, this timepiece has accrued quite a cult following.

A Squircle-Shaped Professional Diving Watch

The Omega Seamaster Ploprof is one of the world's most unconventional and idiosyncratic diving watches. First introduced as a tool watch for professional divers in 1971 ("ploprof" is an amalgam of the French for professional diver, "plongeur professionnel"), the Ploprof quickly acquired cult status, thanks to its extraordinary design and professional technical features.

The Ploprof's angular, asymmetric case and grand diameter of 55 mm make this timepiece unmistakable. While the crown, protected by a heavy crown guard, is on the left, the right-hand side of the case is dominated by a special security pusher that locks and unlocks the watch's bidirectional bezel.

The dial is optimized for readability: the line and bar indices are luminous, as are the watch's broad sword hands and bezel scale.

One of the most important properties a diving watch needs for professional use is, of course, water resistance. First-generation Ploprofs are water-resistant to 600 m (60 bar, 1,969 ft). The second-generation and current model is water-resistant to an impressive 1,200 m (120 bar, 3,937 ft).

Since its inception, the Ploprof has also been one of the few Seamaster models to be powered exclusively by in-house movements. Omega equips current editions, for example, with its ultramodern Co-Axial, certified Master Chronometer calibers.

Reasons to Buy an Omega Ploprof

  • A unique, idiosyncratic design
  • Water-resistant to 1200 m (120 bar, 3,937 ft)
  • Omega in-house calibers

How much does a Seamaster Ploprof cost?

Model, reference numberPrice (approx.)Material, caliber, water resistance
Ploprof 1200M, 227.60.55.21.03.00114,400 USDTitanium, Sedna gold, 8912, 1200 m (120 bar, 3,937 ft)
Ploprof 1200M, 227.90.55.21.01.00110,400 USDTitanium, 8912, 1200 m (120 bar, 3,937 ft)
Seamaster 600 Ploprof, 166.0778,200 USDStainless steel, 1002, 600 m (60 bar, 1,969 ft)
Ploprof 1200M, 224.30.55.21.04.0015,600 USDStainless steel, 8500, 1200 m (120 bar, 3,937 ft)
Seamaster 120 "Baby Ploprof," 166.02505,400 USDStainless steel, 1010, 120 m (12 bar, 394 ft)

Prices at a Glance: Omega Seamaster Ploprof

Prices for the Seamaster Ploprof largely depend on the model and its features, and range from approximately 5,600 to 14,400 USD. At the lower end of this spectrum, you'll find watches like the stainless steel Ploprof 1200M with a white dial and bezel inlay. The titanium Ploprof 1200M with a black bezel and dial changes hands for around 9,900 USD. The price point for a tone-tone Ploprof 1200M in titanium and rose gold is located at the upper end of the price spectrum.

Enthusiasts looking for a vintage Ploprof 600 should plan to spend between 7,800 and 8,200 USD. The Seamaster 120, popularly known as the "Baby Ploprof," sells for about 5,450 USD.

Vintage Classic Seamaster 600 Ploprof

Omega began developing a line of watches for professional underwater use in the late 1960s, but didn't make waves until the 1971 release of the Seamaster 600 Ploprof. This watch is water-resistant to 600 m (60 bar, 1,969 ft) and remains to this day a cult hit among Omega fans.

The Ploprof's bold, asymmetrical case, with its angular shapes, is what's called a monoblock, meaning it's made from a single piece of stainless steel and thus hermetically sealed. This construction makes the watch suitable for saturation diving, even without a helium escape valve. The helium from the diver's air supply can't penetrate the monoblock case, and therefore presents no danger upon decompression.

Omega decided to place the crown on the left-hand side of the case, protected by a crown bridge. There are two main reasons for this. First, this design enables full freedom of movement at the wrist (at least for right-handers), which is important when wearing a watch this size (55 mm). Second, it frees up space on the right-hand side of the case for Omega's unique pusher mechanism, which prevents accidental rotation of the bidirectional bezel. The actual push-piece sits at the 2 o'clock position. The bezel is notched and furnished with luminous numerals, making it easy to see and easy to operate with one hand and with gloves on.

Seamaster 600 Ploprof: Dial and Hand Design

The dial on the Seamaster 600 Ploprof is dark blue, although there are some variants with a black dial. The hours are marked with broad bars, the minutes with fine lines. All the indices are applied and luminous. The date window is situated at 3 o'clock.

Over the years, Omega has released a total of seven different dial designs. The various versions differ only in the inscription over the 6. Earlier models were inscribed with "Professional Seamaster 600," while editions from the late 1970s feature the inscription "Seamaster 600 m / 2000 ft Professional."

The hour and minute hands on the Seamaster 600 Ploprof are comparatively wide, sword-shaped, and filled with lume. The hour hand is white, and the minute hand, by contrast, is bright orange. The second hand is also white, and features a small luminous rectangle near the tip. This arrangement of colors, shapes, and luminous components ensures optimum reliability, even in low-light conditions.

Seamaster 600 Ploprof: Calibers

At the heart of the Seamaster 600 Ploprof is the in-house caliber 1002, which oscillates at 28,000 vibrations per hour (A/h) and offers a 42-hour power reserve, stop-seconds, and a quickset date feature.

Prices for the Seamaster 600 Ploprof

Until 1979, Omega released the Seamaster 600 Ploprof under the ref. 166.077. You can purchase this reference on Chrono24 for approximately 6,700 USD. Most of these watches come with second and third-generation dials. Watches with later-edition dials cost around 8,200 USD.

The New Edition of the Seamaster Ploprof 1200M

In 2009, Omega released an updated variant of the Ploprof, the Seamaster Ploprof 1200M. The size, shape, and general aesthetic of this watch are more or less true to form, but, as the name suggests, this new edition is water-resistant to 1200 m (120 bar, 3,937 ft).

Another new feature is an automatic helium escape valve, located below the bezel pusher at the 4 o'clock position. This new 55-mm stainless steel timepiece has a screw-down case back, which means helium from the diver's air supply can more easily penetrate the watch. In order to protect the watch from damage during decompression, there's now an automatic escape valve.

This new Ploprof also features an updated dial: the hour markers are now applied, and the date display has migrated to 4:30.

The most significant changes, however, are to be found inside this timepiece: the Co-Axial Caliber 8500. This movement boasts a silicon balance spring, 60-hour power reserve, quickset date, and time zone function. The latter enables the wearer to jump-set the hour forward or back without interrupting the movement.

A Ploprof 1200M with a white dial and bezel changes hands for between 5,500 and 6,700 USD, depending on your choice of rubber strap or stainless steel mesh bracelet. Plan to pay about 2,000 USD more for a model with a dial and bezel in black.

Titanium and Master Chronometer

The Ploprof got its latest facelift in 2016, when Omega began issuing the watch in titanium rather than stainless steel. There are also more color options: In addition to the classic black edition, the Ploprof is now available with a gray dial and gray or orange bezel, and with a white dial and blue bezel.

The watch was also equipped with the Master Chronometer caliber 8912. This movement has all the functions of the caliber 8500, except for the date.

Depending on the color combination, a titanium Ploprof 1200M costs between 9,200 and 10,500 USD. You can also purchase a two-tone edition for around 14,200 USD. This timepiece comes in titanium with a crown, push-piece, and bezel in Sedna gold, and features a dial and bezel inlay in blue.

About the Baby Ploprof

The Seamaster 120 appeared in the late 1970s and is affectionately known among watch enthusiasts as the "Baby Ploprof", largely due to its dial and hand design, which was strongly inspired by that of the Seamaster 600 Ploprof. But the Baby Ploprof lacks its progenitor's proportions and has instead a more traditional Tonneau-shaped, 40-mm stainless steel case and water-resistance to only 120 m (12 bar, 394 ft).

This watch is fitted with the caliber 1010, a more advanced version of caliber 1002, and boasts a stop-seconds function, automatic winding, and 42-hour power reserve.

You can purchase the Seamaster 120 "Baby Ploprof" on Chrono24 for approximately 5,500 USD.