Seiko Cal. 6644 - 651

The Seiko 6644-651 represents an important milestone in Seiko's 1975 lineup. With its 20mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-36bc83da73d7]

Also known as: Panda, Flighty

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1975

Related Models

• Seiko 6163-116
• Seiko 5688-395
• Seiko 4517-741
• Seiko 4467-815
• Seiko 7144-400
• Seiko 6111-121
• Seiko 4476-799
• Seiko 4488-675
• Seiko 7091-853
• Seiko 6132-258
• Seiko 6332-125
• Seiko 5279-193