Seiko Cal. 3880 - 940

This Spring Drive model from 1965 features a 36mm PVD Black case. It features a Champagne dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-d8ea048f27de]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1965

Related Models

• Seiko 7175-787
• Seiko 7034-542
• Seiko 0723-771
• Seiko 6162-677
• Seiko 3891-967
• Seiko 7021-372
• Seiko 0798-134
• Seiko 4444-188
• Seiko 7023-219
• Seiko 6651-962
• Seiko 6395-120
• Seiko 7191-798