Seiko Cal. 6644 - 805

Released in 1991, the Cal. 6644 with design code 805 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-b60348fe96cb]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1991

Related Models

• Seiko 6648-994
• Seiko 3843-260
• Seiko 7084-472
• Seiko 6656-444
• Seiko 3880-144
• Seiko 3823-970
• Seiko 5625-288
• Seiko 7199-518
• Seiko 0716-794
• Seiko 5663-379
• Seiko 0726-457
• Seiko 4474-726