Seiko Cal. 3815 - 820

Released in 1988, the Cal. 3815 with design code 820 was part of Seiko's domestic market collection. With its 18mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-af29997dbe68]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1988

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