Seiko Cal. 3817 - 327

The 3817-327 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-d91ab4bd9d21]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1980

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