Seiko Cal. 3817 - 686

The Seiko 3817-686 represents an important milestone in Seiko's 1975 lineup. It features a Green dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-365cc0e28b5b]

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1975

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