Seiko Cal. 6178 - 401

The Seiko 6178-401 represents an important milestone in Seiko's 1988 lineup. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-e5b7e9e61771]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1988

Related Models

• Seiko 5643-700
• Seiko 4553-535
• Seiko 6279-937
• Seiko 6256-213
• Seiko 3877-449
• Seiko 6365-924
• Seiko 3833-851
• Seiko 7160-885
• Seiko 6613-147
• Seiko 6261-589
• Seiko 6652-381
• Seiko 5242-153