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 ฿30,144.

• Alpinist(8)
• Astron(672)
• BRIGHTZ(284)
• Diver Scuba(170)
• Fieldmaster(2)
• Galante(54)
• Grand Seiko(1)
• Kinetic(16)
• King Seiko(108)
• Land Tracer
• Landmaster(3)
• Marinemaster Professional
• Mechanical Sarl
• Mechanical Sarn(1)
• Monster(7)
• Premier(9)
• PRESAGE(180)
• PROSPEX(537)
• Quartz(208)
• Sky Professional
• Spring Drive(83)
• Vintage(119)