Seiko Cal. 3813 - 437

This Spring Drive model from 1989 features a 46mm Hardlex-Coated Steel case. It features a Black dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-22e3ffdc9207]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1989

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