Seiko Cal. 5650 - 631

This Spring Drive model from 1982 features a 38mm PVD Black case. With its 19mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-8efcb7016606]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1982

Related Models

• Seiko 6613-303
• Seiko 7151-887
• Seiko 4587-922
• Seiko 7034-388
• Seiko 0799-168
• Seiko 3885-775
• Seiko 6214-905
• Seiko 5234-147
• Seiko 5226-898
• Seiko 4454-715
• Seiko 6339-227
• Seiko 3835-826