Seiko Cal. 3813 - 423

The Seiko 3813-423 represents an important milestone in Seiko's 1987 lineup. It features a Green dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-003a6092f021]

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1987

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