Seiko Cal. 6381 - 422

The Seiko 6381-422 represents an important milestone in Seiko's 1975 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-7124f18228ef]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1975

Related Models

• Seiko 3878-212
• Seiko 6376-629
• Seiko 5686-212
• Seiko 4556-211
• Seiko 3852-103
• Seiko 6640-186
• Seiko 0789-547
• Seiko 7154-454
• Seiko 0723-691
• Seiko 4577-416
• Seiko 5625-259
• Seiko 6278-405