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 ฿12,710.

• Alpinist(9)
• Astron(719)
• BRIGHTZ(281)
• Diver Scuba(183)
• Fieldmaster(2)
• Galante(52)
• Grand Seiko(2)
• Kinetic(15)
• King Seiko(109)
• Land Tracer
• Landmaster(2)
• Marinemaster Professional
• Mechanical Sarl
• Mechanical Sarn(1)
• Monster(11)
• Premier(8)
• PRESAGE(182)
• PROSPEX(546)
• Quartz(219)
• Sky Professional
• Spring Drive(81)
• Vintage(117)