Seiko Cal. 6644 - 609

The Seiko 6644-609 represents an important milestone in Seiko's 1965 lineup. With its 18mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-5c2b2c3b1ff0]

Also known as: Bellmatic, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1965

Related Models

• Seiko 3888-402
• Seiko 3868-383
• Seiko 6324-900
• Seiko 6316-434
• Seiko 3845-949
• Seiko 6298-971
• Seiko 6690-324
• Seiko 6175-926
• Seiko 6369-850
• Seiko 5649-631
• Seiko 6373-559
• Seiko 3845-132