Seiko Cal. 5638 - 507

This Hand-Winding model from 1995 features a 37mm Stainless Steel case. With its 20mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-ccaa1e663a3b]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1995

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