Seiko Cal. 3815 - 227

Released in 1981, the Cal. 3815 with design code 227 was part of Seiko's domestic market collection. With its 18mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-50535ba28ced]

Also known as: Tuna, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1981

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