Seiko Cal. 7138 - 537

The Seiko 7138-537 represents an important milestone in Seiko's 1967 lineup. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-8c6a5aa492ea]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1967

Related Models

• Seiko 7025-649
• Seiko 6141-615
• Seiko 6245-909
• Seiko 7173-375
• Seiko 6226-883
• Seiko 6317-127
• Seiko 3848-688
• Seiko 7146-361
• Seiko 4412-846
• Seiko 5627-222
• Seiko 0713-359
• Seiko 7070-766