Seiko Cal. 3817 - 470

The Seiko 3817-470 represents an important milestone in Seiko's 1977 lineup. With its 19mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-b564ac4685cc]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1977

Related Models

• Seiko 0739-264
• Seiko 7112-570
• Seiko 7161-487
• Seiko 5627-528
• Seiko 4534-215
• Seiko 6287-496
• Seiko 5287-492
• Seiko 4566-323
• Seiko 0721-412
• Seiko 7011-612
• Seiko 4423-907
• Seiko 7033-736