Seiko Cal. 5630 - 420

Released in 1977, the Cal. 5630 with design code 420 was part of Seiko's domestic market collection. With its 18mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-56b4ae82ab75]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1977

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