Seiko Cal. 6138 - 520

The Seiko 6138-520 represents an important milestone in Seiko's 1969 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-8ad63b11af84]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1969

Related Models

• Seiko 6179-808
• Seiko 4533-497
• Seiko 6377-486
• Seiko 5259-347
• Seiko 6313-851
• Seiko 6693-525
• Seiko 6284-846
• Seiko 0781-493
• Seiko 3829-836
• Seiko 5682-557
• Seiko 6693-314
• Seiko 6325-753