Seiko Cal. 3817 - 621

The Seiko 3817-621 represents an important milestone in Seiko's 1988 lineup. It features a White dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-b79852b57bf8]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1988

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