Seiko Cal. 6387 - 791

The Seiko 6387-791 represents an important milestone in Seiko's 1967 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-21b3c8c00863]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1967

Related Models

• Seiko 6257-167
• Seiko 6638-223
• Seiko 5690-309
• Seiko 0750-825
• Seiko 6371-640
• Seiko 3896-442
• Seiko 6674-418
• Seiko 6161-802
• Seiko 7013-690
• Seiko 3898-303
• Seiko 4535-565
• Seiko 7194-321