Seiko Cal. 3817 - 688

The 3817-688 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-cb264dbf2251]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1973

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