Seiko Cal. 6636 - 863

This Spring Drive model from 1966 features a 36mm Gold-Plated case. Powered by the 6636 caliber with 25j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-878075aa45df]

Also known as: Bellmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1966

Related Models

• Seiko 4541-729
• Seiko 5621-307
• Seiko 6397-170
• Seiko 5214-309
• Seiko 4499-357
• Seiko 3887-892
• Seiko 6268-959
• Seiko 6114-208
• Seiko 6686-496
• Seiko 0750-544
• Seiko 0780-138
• Seiko 6255-179