OMEGA SEAMASTER PROFESSIONAL

Omega Seamaster Professional Chronometer 300M

2531.80 "007" Review
by Robert Jan Broer
Voorburg/The Netherlands, 30th of August 2000
(All photos except for the Seamaster "Ploprof" below, were taken by the author using a Sony Mavica FD-83.

Introduction

The Seamaster was introduced in 1948 (also in Chronometer version). In the early years, you could describe the Seamaster as a sporty dress watch. It wasn't until the 70s when the Seamaster started to get some 'Diver'-watch shapes. Maybe the most collectible Seamaster from that time is the Seamaster "Ploprof" 600m/2000ft. Introduced in 1970. It was used by Commander Cousteau during a series of experiments at depths of around 500 meters.

The photo on your right is a shot of the Seamaster "Ploprof" 600 m/2000 ft on a stainless steel Omega signed bracelet. It was also available on a rubber strap.

The Seamaster Professional with reference number 2531.80 was introduced in 1993. When the watch appeared in the movie "GoldenEye" on the wrist of James "007" Bond in 1995, it didn't take long for people to call it the Bond or "007"-watch.

Seamaster Ploprof 600m/2000ft

Tech.Specs

The Seamaster Professional uses an Omega cal.1120 movement, based on the 2892-A2 movement with 23 jewels. The original ETA 2892-A2 has 21 jewels but after Omega modified it, it had 23. The rotor has the Omega cal.1120 engraving and a lot of the parts are nicely finished/polished. The movement is also chronometer certified. Which means that it has a certain accuracy tested by different temperatures and positions. -4 seconds / +6 seconds a day are the maximal deviations. I can't say much about the accuracy of the watch yet, but I assume it is running within the specifications. Maybe it needs some time to settle in, however, I will check the accuracy in the near future. (update : it runs -1 sec a day, and in total it lost 3 seconds in one week. So it gains some time at night I guess).

The movement has a powerreserve of 44 hours and ticks at 28.800 beats an hour. The date feature is quick-set and changes at midnight within a blink of the eyes. Like the dial says, the watch is waterresistant till a depth of approx. 300 m / 1000 ft.
The screwed-crown makes sure the water is being kept outside of the case and the helium-valve is only used when diving on greater depths. It is used for compensating the pressure from the inside of the watch with the help of helium.

The illuminous material on the dial and on the bezel is called Super Luminova and is lasting a lot longer than the good ol' tritium. I don't exactly know when they changed it, but I think it was with the introduction of this model.

About 24 hours after the purchase

First of all, the watch seems to be bigger than my Omega Speedmaster Professional, which is about 40mm wide and a height of approx. 14mm. Omega says this watch is 39.3mm wide and the height is about 10mm . Maybe it is due the big looking bracelet or the big crown protector and helium-valve but this watch looks and feels a lot bigger. It is also quite heavy, about 158grams according to the specs found on the website of Zowie.

In my opinion, a watch this size is allowed to be heavy. I didn't want to have the Ti-version, first of all because I don't like the looks of Ti and second it is too light. I would be constantly looking on my wrist if the watch was still there.

Another thing I noticed rather quickly was the illuminosity of the dial. When going to the bathroom, you won't have to turn on the light when wearing this watch. I check it a bit and it glowed about all night. The bezel has a little illuminous spot at 12 o'clock as shown on the picture on the left.

Source: www.omega-addict.com
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