Seiko Cal. 3815 - 680

The Seiko 3815-680 represents an important milestone in Seiko's 1976 lineup. It features a Green dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-5a9dc1034e1f]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1976

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