Japan's watch maker founded in 1892, which is the world’s first commercialized Quartz watch. And furthermore, the world's first 6-digit display digital watch in 1973, the world's first watch with a movement “Spring drive” function in 1999. Seiko manufactures a wide variety of watches from high-end models Grand Seiko and Credor to reasonable daily models. The average sales price for Seiko is ฿29,054.

• Alpinist(9)
• Astron(718)
• BRIGHTZ(284)
• Diver Scuba(187)
• Fieldmaster(2)
• Galante(52)
• Grand Seiko(2)
• Kinetic(13)
• King Seiko(108)
• Land Tracer
• Landmaster(2)
• Marinemaster Professional
• Mechanical Sarl
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• Monster(10)
• Premier(8)
• PRESAGE(183)
• PROSPEX(553)
• Quartz(220)
• Sky Professional
• Spring Drive(80)
• Vintage(117)