Seiko Cal. 7138 - 704

The Seiko 7138-704 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-2a0593114684]

Also known as: Shogun, Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1978

Related Models

• Seiko 0720-158
• Seiko 6134-532
• Seiko 6135-860
• Seiko 5664-175
• Seiko 4558-186
• Seiko 5657-638
• Seiko 4451-169
• Seiko 6694-575
• Seiko 6654-938
• Seiko 0748-890
• Seiko 6156-321
• Seiko 0745-614