The Royal Sea Tank MKIII - 21 Jewels Automatic Watch, 20ATM, Sapphire crystal
The Royal Sea Tank MKIII is a robust, accurate, and water-resistant watch with a sunburst light grey dial and 200 meters of water resistance.
- The Japanese movement Caliber 8200 series is claimed to be well-engineered, very accurate, and very durable.
- The watch is claimed to be backed and certified by Paul Bowman London.
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