Seiko Cal. 3815 - 104

Released in 1977, the Cal. 3815 with design code 104 was part of Seiko's domestic market collection. With its 20mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-d2aa4344ad31]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1977

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