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 ฿33,586.

• Alpinist(7)
• Astron(665)
• BRIGHTZ(280)
• Diver Scuba(168)
• Fieldmaster(2)
• Galante(54)
• Grand Seiko(1)
• Kinetic(17)
• King Seiko(111)
• Land Tracer
• Landmaster(3)
• Marinemaster Professional
• Mechanical Sarl
• Mechanical Sarn(1)
• Monster(8)
• Premier(10)
• PRESAGE(187)
• PROSPEX(539)
• Quartz(213)
• Sky Professional
• Spring Drive(80)
• Vintage(125)