Seiko Cal. 5631 - 486

This Quartz model from 1967 features a 38mm Two-Tone case. With its 18mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-d1856ca743b0]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1967

Related Models

• Seiko 6314-906
• Seiko 6233-839
• Seiko 4424-531
• Seiko 5661-853
• Seiko 6342-709
• Seiko 3812-240
• Seiko 0714-804
• Seiko 4489-653
• Seiko 4562-602
• Seiko 0775-749
• Seiko 6216-261
• Seiko 0786-539