Seiko Cal. 3830 - 687

This Spring Drive model from 1968 features a 39mm PVD Black case. With its 21mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-aa54ff2c1ece]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1968

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