Seiko Cal. 6644 - 962

This Solar model from 1966 features a 38mm Gold-Plated case. Powered by the 6644 caliber with 24j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-596fe45d281e]

Also known as: Sumo, Flighty

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1966

Related Models

• Seiko 6138-629
• Seiko 5631-225
• Seiko 6364-398
• Seiko 6660-864
• Seiko 6694-791
• Seiko 7156-565
• Seiko 3832-243
• Seiko 5654-314
• Seiko 5616-534
• Seiko 6380-207
• Seiko 7183-110
• Seiko 7094-322