Seiko Cal. 5634 - 146

This Spring Drive model from 1991 features a 36mm Stainless Steel case. With its 20mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-6c8f21ffe5d4]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1991

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