Seiko Cal. 6157 - 591

This Spring Drive model from 1975 features a 36mm Stainless Steel case. Powered by the 6157 caliber with 22j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-8eff6359c9aa]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1975

Related Models

• Seiko 5622-186
• Seiko 5616-599
• Seiko 4569-284
• Seiko 3834-953
• Seiko 6291-240
• Seiko 5270-691
• Seiko 4420-376
• Seiko 6214-788
• Seiko 4524-903
• Seiko 3820-533
• Seiko 4492-246
• Seiko 7095-975