Seiko Cal. 6392 - 990

Released in 1981, the Cal. 6392 with design code 990 was part of Seiko's domestic market collection. Powered by the 6392 caliber with 21j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-a7a028e7cadf]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1981

Related Models

• Seiko 4490-292
• Seiko 7199-932
• Seiko 4592-145
• Seiko 6368-199
• Seiko 6139-412
• Seiko 4481-594
• Seiko 6125-137
• Seiko 4592-715
• Seiko 5241-385
• Seiko 6360-930
• Seiko 6391-995
• Seiko 4568-334