Seiko Cal. 7188 - 831

This Hand-Winding model from 1970 features a 45mm Stainless Steel case. It features a Silver dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-9859694c1ae4]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1970

Related Models

• Seiko 0715-419
• Seiko 0718-755
• Seiko 5255-746
• Seiko 3874-904
• Seiko 7087-175
• Seiko 0733-828
• Seiko 3854-870
• Seiko 3850-379
• Seiko 5640-296
• Seiko 6384-927
• Seiko 4544-829
• Seiko 4431-515