Seiko Cal. 6389 - 321

The Seiko 6389-321 represents an important milestone in Seiko's 1971 lineup. Powered by the 6389 caliber with 18j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-7929037c7711]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1971

Related Models

• Seiko 7118-902
• Seiko 6689-118
• Seiko 5611-949
• Seiko 6164-740
• Seiko 6283-180
• Seiko 6675-818
• Seiko 4558-412
• Seiko 7117-891
• Seiko 5682-414
• Seiko 5264-389
• Seiko 4473-718
• Seiko 7140-306