Seiko Cal. 6644 - 970

The 6644-970 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6644 caliber with 22j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-b0478ce76955]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1978

Related Models

• Seiko 6173-586
• Seiko 0768-799
• Seiko 5694-743
• Seiko 5275-528
• Seiko 0735-112
• Seiko 3879-169
• Seiko 6384-613
• Seiko 0753-300
• Seiko 6332-309
• Seiko 4590-812
• Seiko 6669-926
• Seiko 6278-827