Seiko Cal. 4444 - 851

Released in 1981, the Cal. 4444 with design code 851 was part of Seiko's domestic market collection. It features a Black dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-6cbc0a45067d]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1981

Related Models

• Seiko 4460-373
• Seiko 4523-380
• Seiko 6367-415
• Seiko 6662-250
• Seiko 7043-430
• Seiko 0778-344
• Seiko 3816-908
• Seiko 6136-248
• Seiko 7158-829
• Seiko 5675-336
• Seiko 4434-243
• Seiko 5688-417