Seiko Cal. 5638 - 798

This Quartz model from 1978 features a 46mm Two-Tone case. With its 22mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-6169db568ef4]

Also known as: Bellmatic, Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1978

Related Models

• Seiko 6278-474
• Seiko 3878-191
• Seiko 5624-276
• Seiko 6323-505
• Seiko 7026-478
• Seiko 5250-232
• Seiko 4476-686
• Seiko 4458-909
• Seiko 6298-156
• Seiko 5648-633
• Seiko 4578-749
• Seiko 6648-528