Seiko Cal. 5613 - 135

This Spring Drive model from 1987 features a 45mm Stainless Steel case. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-70f91a16e7c7]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1987

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