Seiko Cal. 5634 - 384

This Spring Drive model from 1981 features a 46mm Titanium case. With its 21mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-e039abe612f3]

Also known as: UFO, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1981

Related Models

• Seiko 0733-920
• Seiko 0754-999
• Seiko 7177-130
• Seiko 6376-864
• Seiko 4498-480
• Seiko 6139-278
• Seiko 7117-204
• Seiko 3811-172
• Seiko 7162-960
• Seiko 6179-873
• Seiko 3864-888
• Seiko 3822-688