Seiko Cal. 7187 - 526

This Quartz model from 1971 features a 40mm Stainless Steel case. With its 20mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-a44ccd550447]

Also known as: Helmet, Silverwave

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1971

Related Models

• Seiko 6140-125
• Seiko 4485-637
• Seiko 7158-986
• Seiko 0725-999
• Seiko 0738-769
• Seiko 6218-364
• Seiko 3815-269
• Seiko 7125-847
• Seiko 5686-359
• Seiko 6643-656
• Seiko 4530-189
• Seiko 6362-358