Seiko Cal. 3815 - 237

The 3815-237 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3815 caliber with 21j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-79cc9d30ed53]

Also known as: Bullhead, Flighty

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1983

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