Seiko Cal. 6636 - 858

This Spring Drive model from 1995 features a 40mm Two-Tone case. With its 20mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-9c4ce7a9121a]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1995

Related Models

• Seiko 4419-249
• Seiko 5698-271
• Seiko 0779-543
• Seiko 5225-855
• Seiko 0710-597
• Seiko 3885-165
• Seiko 6273-228
• Seiko 7012-537
• Seiko 4565-263
• Seiko 7137-404
• Seiko 4469-582
• Seiko 5230-909