Seiko Cal. 6138 - 728

This Spring Drive model from 1967 features a 34mm Two-Tone case. With its 20mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-8e56f4fa81cd]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1967

Related Models

• Seiko 7134-784
• Seiko 6675-975
• Seiko 7156-159
• Seiko 5241-590
• Seiko 6259-475
• Seiko 3830-637
• Seiko 6289-515
• Seiko 5628-664
• Seiko 4475-838
• Seiko 6143-647
• Seiko 6212-930
• Seiko 7145-492