Seiko Cal. 3817 - 899

The Seiko 3817-899 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-3db0dac81932]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1970

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