Seiko Cal. 3840 - 780

This Automatic model from 1977 features a 35mm Stainless Steel case. With its 18mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-2acce394235b]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1977

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