Seiko Cal. 5638 - 350

This Automatic model from 1991 features a 40mm Two-Tone case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-71591ce75aa8]

Also known as: Silverwave, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1991

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