Seiko Cal. 5642 - 621

This Solar model from 1977 features a 45mm Two-Tone case. With its 20mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-6e27f05e86ee]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1977

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