Seiko Cal. 7181 - 155

This Solar model from 1966 features a 37mm Gold-Plated case. Powered by the 7181 caliber with 31j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-698638b1a341]

Also known as: Samurai, Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1966

Related Models

• Seiko 6148-159
• Seiko 6211-898
• Seiko 6138-832
• Seiko 3856-453
• Seiko 5230-231
• Seiko 6125-859
• Seiko 7069-603
• Seiko 5680-830
• Seiko 4554-461
• Seiko 5292-611
• Seiko 6240-970
• Seiko 5225-787