Seiko Cal. 7138 - 872

This Spring Drive model from 1975 features a 44mm PVD Black case. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-0fd46fd22d70]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1975

Related Models

• Seiko 4433-901
• Seiko 6276-731
• Seiko 4431-887
• Seiko 3851-206
• Seiko 6172-741
• Seiko 5231-984
• Seiko 6652-490
• Seiko 4467-555
• Seiko 5259-366
• Seiko 7110-936
• Seiko 7178-355
• Seiko 6631-830