Seiko Cal. 3817 - 715

The Seiko 3817-715 represents an important milestone in Seiko's 1968 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e80b13fd9c74]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1968

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