Seiko Cal. 6644 - 466

The Seiko 6644-466 represents an important milestone in Seiko's 1973 lineup. Powered by the 6644 caliber with 20j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-1b8ee8496cb8]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1973

Related Models

• Seiko 7137-108
• Seiko 3872-758
• Seiko 3854-828
• Seiko 6216-707
• Seiko 0723-906
• Seiko 6358-652
• Seiko 5262-459
• Seiko 6358-745
• Seiko 3847-662
• Seiko 5667-451
• Seiko 5249-646
• Seiko 7110-123