Seiko Cal. 3817 - 120

The Seiko 3817-120 represents an important milestone in Seiko's 1976 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-6c6f19cf535d]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1976

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