Seiko Cal. 6387 - 342

The Seiko 6387-342 represents an important milestone in Seiko's 1975 lineup. Powered by the 6387 caliber with 35j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-ed9ef0e0a639]

Also known as: Helmet, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1975

Related Models

• Seiko 6273-143
• Seiko 5670-358
• Seiko 5226-606
• Seiko 4554-437
• Seiko 6626-612
• Seiko 3864-519
• Seiko 6197-135
• Seiko 3838-815
• Seiko 4494-999
• Seiko 6259-989
• Seiko 6189-768
• Seiko 6269-520