Seiko Cal. 5645 - 715

This Hand-Winding model from 1981 features a 42mm Hardlex-Coated Steel case. With its 20mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-0bdc3eb0f993]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1981

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