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Welcome to my review of the Limited Edition Grand Seiko GMT SBGM235 MOSAIC Dial Watch! In celebration of 20 years of the 9S movement technology, Grand Seiko has released this exquisite timepiece that is sure to turn heads. As a watch enthusiast and an expert in the world of luxury watches, I couldn’t wait to get my hands on this limited edition model and share my thoughts with you. So, without further ado, let’s dive into the details of this stunning watch and explore why it may be the next piece to add to your collection.


Grand Seiko is a well-known and respected brand in the world of luxury watches. It has been producing high-quality timepieces for over 60 years. The brand has recently celebrated 20 years of their 9S movement technology with a limited edition Grand Seiko GMT SBGM235 with MOSAIC dial. In this article, let us review this masterpiece and explore its features and design.

Features of the Limited Edition Grand Seiko GMT SBGM235

Grand Seiko GMT SBGM235 has stunning features that make it stand out from other luxury watches. Below are some of its unique features.


The watch has a beautiful design that is inspired by Japanese beauty and craftsmanship. The MOSAIC dial is a unique feature of this watch, and it reflects the sunburst pattern seen on the roof of the Seiko Museum in Tokyo. The dial also has a date window, and it is protected by a scratch-resistant sapphire crystal glass.


Grand Seiko GMT SBGM235 utilizes an in-house developed 9S66 movement that is very accurate and reliable. The movement is visible through the sapphire crystal glass case back, allowing the wearer to appreciate the intricate workings of the watch.


The watch has a GMT function that allows the wearer to track two time zones simultaneously. It also has a stop seconds hand function that enables the wearer to precisely set the time.

Water Resistance

The watch can withstand water pressure up to 10 bar, making it suitable for swimming and snorkeling.


The design of this limited edition Grand Seiko watch is exceptional. It features a 39.5 mm stainless steel case that has a thickness of 13.7mm. The case is polished to perfection, and it is comfortable to wear thanks to its curved lugs. The watch has a beautiful black crocodile strap that complements its design.


Grand Seiko GMT SBGM235 is powered by the in-house developed 9S66 movement, which has a power reserve of up to 72 hours. The GMT function and stop seconds hand work flawlessly, and the watch is very accurate and reliable.


The limited edition Grand Seiko GMT SBGM235 MOSAIC dial watch is a beautiful timepiece that celebrates 20 years of 9S movement technology. It has unique features, exceptional design, and outstanding performance. This watch is a must-have for luxury watch enthusiasts who appreciate craftsmanship and accuracy.


  1. What is the power reserve of Grand Seiko GMT SBGM235?
  1. What is the size of the case of Grand Seiko GMT SBGM235?
  1. What is the water resistance of Grand Seiko GMT SBGM235?
  1. What is the movement used in Grand Seiko GMT SBGM235?
  1. Is Grand Seiko GMT SBGM235 available for purchase?