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 ฿31,034.

• Alpinist(15)
• Astron(705)
• BRIGHTZ(356)
• Diver Scuba(131)
• Fieldmaster(5)
• Galante(66)
• Grand Seiko(5)
• Kinetic(17)
• King Seiko(62)
• Land Tracer
• Landmaster(4)
• Marinemaster Professional(1)
• Mechanical Sarl
• Mechanical Sarn
• Monster(7)
• Premier(5)
• PRESAGE(182)
• PROSPEX(469)
• Quartz(154)
• Sky Professional
• Spring Drive(64)
• Vintage(78)