Seiko Cal. 6644 - 950

Released in 1971, the Cal. 6644 with design code 950 was part of Seiko's domestic market collection. With its 20mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-bc7dd460a3d1]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1971

Related Models

• Seiko 7026-735
• Seiko 4439-830
• Seiko 6328-210
• Seiko 7054-218
• Seiko 6311-495
• Seiko 0795-710
• Seiko 5247-532
• Seiko 5633-103
• Seiko 6187-586
• Seiko 6244-781
• Seiko 0795-706
• Seiko 7068-837